Climate - Frosinone (Lazio)
Average weather, temperature, rainfall, sunshine hours
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Climate chart - Frosinone (Lazio)
The climate of Frosinone can be defined as transitional Mediterranean, given that it has relatively mild winters and hot, sunny summers.
The rains are abundant, in fact, they amount to 1,235 millimeters (48.5 inches) per year. The rainiest period is from October to December.
The city is located in the southeast of Lazio, a region of central Italy, in the Sacco River Valley, about 70 km (45 mi) southeast of Rome. The historic center is 300 meters (985 feet) above sea level, while the newer part of the city (where the weather station is also located) is at 180 meters (590 ft). To the south-west, beyond the Lepini mountains is the Pontine plain.
Due to its location in a valley enclosed by the mountains, Frosinone's climate is slightly more continental than in Rome and Latina. In winter, cold air tends to stagnate, resulting in the accumulation of pollutants.
The winter, from December to February, is quite mild, however, in periods of good weather, it can get cold at night, fog can form, and the temperature can drop slightly below freezing, especially in neighborhoods close to the countryside.
There are mild periods, during which Atlantic currents prevail, and there may also be rainy days.
Snow in Frosinone is more frequent than in Rome. In past decades, an average of 20 cm (8 in) of snow fell per year. In February 2012 the snow thickness reached 60 cm (23.5 in).
During cold waves, the temperature can drop several degrees below freezing. Generally, the temperature reaches -8/-9 °C (16/18 °F) in the coldest periods, however, during the exceptional cold wave of January 1985, it reached -19 °C (-2 °F).
The summer, from June to August, is hot and sunny, with rare rainy days and some thunderstorms coming from the Apennines.
At night the temperature drops a lot, but during the day it can be very hot, with highs of 36/37 °C (97/99 °F). During the August 2017 heat wave, the temperature reached 42.8 °C (109 °F).
Best Time
The best times to visit Frosinone are spring and autumn, ie from mid-April to mid-June and from September to early October. In June, the weather is often nice, but it can sometimes get hot, especially in the second half of the month.
Frosinone - Climate data
The average temperature of the coldest month (January) is of 6.2 °C (43.2 °F), that of the warmest month (August) is of 25.0 °C (77.0 °F). Here are the average temperatures.Frosinone - Average temperatures (1991-2020) | Month | Min (°C) | Max (°C) | Mean (°C) | Min (°F) | Max (°F) | Mean (°F) |
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| January | 1.4 | 11.1 | 6.2 | 35 | 52 | 43.2 |
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| February | 1.7 | 12.3 | 7 | 35 | 54 | 44.6 |
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| March | 4.6 | 15.4 | 10 | 40 | 60 | 50 |
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| April | 7.3 | 18.7 | 13 | 45 | 66 | 55.4 |
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| May | 11.2 | 23.7 | 17.5 | 52 | 75 | 63.4 |
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| June | 15.1 | 28 | 21.5 | 59 | 82 | 70.7 |
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| July | 17.6 | 31.2 | 24.4 | 64 | 88 | 76 |
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| August | 18 | 32.1 | 25 | 64 | 90 | 77 |
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| September | 14.4 | 26.7 | 20.6 | 58 | 80 | 69 |
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| October | 10.8 | 21.4 | 16.1 | 51 | 71 | 60.9 |
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| November | 6.4 | 15.7 | 11 | 44 | 60 | 51.9 |
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| December | 2.7 | 11.8 | 7.2 | 37 | 53 | 45 |
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| Year | 9.3 | 20.7 | 15 | 48.8 | 69.3 | 59 |
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Precipitation amounts to 1235 millimeters (48.6 inches) per year: it is therefore quite abundant. It ranges from 40 mm (1.6 in) in the driest month (July) to 195 mm (7.7 in) in the wettest one (November). Here is the average precipitation.Frosinone - Average precipitation| Month | Millimeters | Inches | Days |
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| January | 105 | 4.1 | 8 |
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| February | 115 | 4.5 | 8 |
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| March | 90 | 3.5 | 9 |
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| April | 115 | 4.5 | 11 |
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| May | 75 | 3 | 8 |
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| June | 50 | 2 | 6 |
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| July | 40 | 1.6 | 4 |
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| August | 55 | 2.2 | 5 |
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| September | 105 | 4.1 | 7 |
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| October | 150 | 5.9 | 9 |
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| November | 195 | 7.7 | 11 |
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| December | 150 | 5.9 | 10 |
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| Year | 1235 | 48.6 | 96 |
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There are on average around 2535 sunshine hours per year. Here are the average hours of sunshine per day.
Frosinone - Sunshine hours| Month | Average | Total |
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January | 4 | 125 | February | 4.5 | 135 | March | 5.5 | 170 | April | 7 | 205 | May | 8.5 | 265 | June | 9.5 | 290 | July | 11 | 340 | August | 10 | 310 | September | 8 | 245 | October | 6.5 | 200 | November | 4.5 | 135 | December | 4 | 120 | Year | 6.9 | 2535 |
Frosinone - Weather by month
Based on the period 1991-2020
January, the coldest month of the year, is generally a quite cold month. The average temperature is of 6.2 °C (43 °F), with a minimum of 1.4 °C (34.5 °F) and a maximum of 11.1 °C (51.9 °F).
On the coldest nights of the month, the temperature usually drops to around -4.5 °C (24 °F). However, it dropped to -9.8 °C (14.4 °F) in January 2002.
On the warmest days of the month, the temperature usually reaches around 16 °C (61 °F). However, it reached 18.8 °C (65.8 °F) in January 2018.
Precipitation amounts to 105 mm (4.1 in), distributed over 8 days.
The day lasts on average 9 hours and 35 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 42% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).
February is generally a quite mild month. The average temperature is of 7 °C (45 °F), with a minimum of 1.7 °C (35.1 °F) and a maximum of 12.3 °C (54.1 °F).
On the coldest nights of the month, the temperature usually drops to around -4 °C (25 °F). However, it dropped to -10.2 °C (13.6 °F) in February 2018.
On the warmest days of the month, the temperature usually reaches around 18 °C (64.5 °F). However, it reached 20.8 °C (69.4 °F) in February 2007.
Precipitation amounts to 115 mm (4.5 in), distributed over 8 days.
The day lasts on average 10 hours and 35 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 44% of the time.
The average humidity is 69%.
The average wind speed is 6 kph (4 mph).
March is generally a mild month. The average temperature is of 10.0 °C (50 °F), with a minimum of 4.6 °C (40.2 °F) and a maximum of 15.4 °C (59.8 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -1.5 °C (29.5 °F). However, it dropped to -5 °C (23 °F) in March 1996.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 21.5 °C (71 °F). However, it reached 25 °C (77 °F) in March 1991.
Precipitation amounts to 90 mm (3.5 in), distributed over 9 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 46% of the time.
The average humidity is 67%.
The average wind speed is 8 kph (5 mph).
April is generally a mild month. The average temperature is of 13.0 °C (55 °F), with a minimum of 7.3 °C (45.1 °F) and a maximum of 18.7 °C (65.7 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 1.5 °C (34.5 °F). However, it dropped to -2 °C (28.4 °F) in April 2003.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 25 °C (77 °F). However, it reached 29 °C (84.2 °F) in April 2012.
Precipitation amounts to 115 mm (4.5 in), distributed over 11 days.
The day lasts on average 13 hours and 25 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 68%.
The average wind speed is 7 kph (5 mph).
May is generally a very mild month. The average temperature is of 17.5 °C (63 °F), with a minimum of 11.2 °C (52.2 °F) and a maximum of 23.7 °C (74.7 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 6 °C (42.5 °F). However, it dropped to 3 °C (37.4 °F) in May 1991.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 29.5 °C (84.5 °F). However, it reached 34 °C (93.2 °F) in May 2009.
Precipitation amounts to 75 mm (3 in), distributed over 8 days.
The day lasts on average 14 hours and 35 minutes. So the days are long.
There are on average 8.5 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 66%.
The average wind speed is 7 kph (4 mph).
June is generally a warm month. The average temperature is of 21.5 °C (71 °F), with a minimum of 15.1 °C (59.1 °F) and a maximum of 28 °C (82.4 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 10.5 °C (50.5 °F). However, it dropped to 6.8 °C (44.2 °F) in June 2006.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 34 °C (93 °F). However, it reached 37.9 °C (100.2 °F) in June 2019.
Precipitation amounts to 50 mm (2 in), distributed over 6 days.
The day lasts on average 15 hours and 10 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 9.5 hours of sunshine per day. So, the sun shines 64% of the time.
The average humidity is 61%.
The average wind speed is 7 kph (4 mph).
July is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of 24.4 °C (76 °F), with a minimum of 17.6 °C (63.7 °F) and a maximum of 31.2 °C (88.2 °F).
On the coldest nights of the month, the temperature usually drops to around 13.5 °C (56 °F). However, it dropped to 10.4 °C (50.7 °F) in July 2000.
On the warmest days of the month, the temperature usually reaches around 36 °C (97 °F). However, it reached 38.4 °C (101.1 °F) in July 2005.
Precipitation amounts to 40 mm (1.6 in), distributed over 4 days.
The day lasts on average 14 hours and 50 minutes. So the days are long.
There are on average 11 hours of sunshine per day. So, the sun shines 73% of the time.
The average humidity is 57%.
The average wind speed is 8 kph (5 mph).
August, the hottest month of the year, is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of 25.0 °C (77 °F), with a minimum of 18 °C (64.4 °F) and a maximum of 32.1 °C (89.7 °F).
On the coldest nights of the month, the temperature usually drops to around 13.5 °C (56.5 °F). However, it dropped to 10 °C (50 °F) in August 1995.
On the warmest days of the month, the temperature usually reaches around 36.5 °C (98 °F). However, it reached 42.8 °C (109 °F) in August 2017.
Precipitation amounts to 55 mm (2.2 in), distributed over 5 days.
The day lasts on average 13 hours and 50 minutes.
There are on average 10 hours of sunshine per day. So, the sun shines 72% of the time.
The average humidity is 57%.
The average wind speed is 7 kph (4 mph).
September is generally a warm month. The average temperature is of 20.6 °C (69 °F), with a minimum of 14.4 °C (58 °F) and a maximum of 26.7 °C (80.1 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 9 °C (48.5 °F). However, it dropped to 4.8 °C (40.6 °F) in September 2008.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 32 °C (89.5 °F). However, it reached 36 °C (96.8 °F) in September 2011.
Precipitation amounts to 105 mm (4.1 in), distributed over 7 days.
The day lasts on average 12 hours and 25 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 65%.
The average wind speed is 6 kph (4 mph).
October is generally a very mild month. The average temperature is of 16.1 °C (61 °F), with a minimum of 10.8 °C (51.4 °F) and a maximum of 21.4 °C (70.5 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 4.5 °C (40 °F). However, it dropped to 0 °C (32 °F) in October 2009.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 27 °C (80 °F). However, it reached 30 °C (86 °F) in October 2007.
Precipitation amounts to 150 mm (5.9 in), distributed over 9 days.
The day lasts on average 11 hours and 0 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 59% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).
November is generally a mild month. The average temperature is of 11.0 °C (52 °F), with a minimum of 6.4 °C (43.5 °F) and a maximum of 15.7 °C (60.2 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -0.5 °C (31 °F). However, it dropped to -5 °C (23 °F) in November 1995.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 21.5 °C (70.5 °F). However, it reached 24 °C (75.2 °F) in November 1994.
Precipitation amounts to 195 mm (7.7 in), distributed over 11 days.
The day lasts on average 9 hours and 50 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 46% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).
December is generally a quite mild month. The average temperature is of 7.2 °C (45 °F), with a minimum of 2.7 °C (36.9 °F) and a maximum of 11.8 °C (53.2 °F).
On the coldest nights of the month, the temperature usually drops to around -4 °C (25 °F). However, it dropped to -7 °C (19.4 °F) in December 1991.
On the warmest days of the month, the temperature usually reaches around 17 °C (63 °F). However, it reached 21 °C (69.8 °F) in December 1991.
Precipitation amounts to 150 mm (5.9 in), distributed over 10 days.
The day lasts on average 9 hours and 10 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 4 hours of sunshine per day. So, the sun shines 41% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).
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