Climate and monthly weather forecastCalvin, OK
Climate and monthly weather forecast
Weather in January
January, the same as December, in Calvin, Oklahoma, is another chilly winter month, with an average temperature fluctuating between 33.3°F (0.7°C) and 48.7°F (9.3°C). Calvin's coldest month, January, registers temperatures that range from a high of 48.7°F (9.3°C) to a low of 33.3°F (0.7°C). Weather in January »Weather in February
The last month of the winter, February, is a cool month in Calvin, Oklahoma, with an average temperature ranging between min 36.1°F (2.3°C) and max 52.2°F (11.2°C). February's average high-temperature stands at a fresh 52.2°F (11.2°C), showing little deviation from January's 48.7°F (9.3°C). Weather in February »Weather in March
March, the first month of the spring in Calvin, is a comfortable month, with an average temperature ranging between max 62.6°F (17°C) and min 45.5°F (7.5°C). The shift into March brings an increase in the average high-temperature, moving from a cool 52.2°F (11.2°C) in February to a refreshing 62.6°F (17°C). Weather in March »Weather in April
April is an agreeable spring month in Calvin, Oklahoma, with temperature in the range of an average high of 70°F (21.1°C) and an average low of 52°F (11.1°C). A slight uplift of average high-temperatures is noted in April, with temperatures adjusting from a refreshing 62.6°F (17°C) in March to a pleasant 70°F (21.1°C). Weather in April »Weather in May
The last month of the spring, May, is a moderately hot month in Calvin, Oklahoma, with an average temperature fluctuating between 76.5°F (24.7°C) and 59.9°F (15.5°C). In Calvin, the average high-temperature in May slightly rises, from an agreeable 70°F (21.1°C) in April, to a moderately hot 76.5°F (24.7°C). Weather in May »Weather in June
June, the first month of the summer in Calvin, is a tropical month, with temperature in the range of an average high of 86.5°F (30.3°C) and an average low of 69.4°F (20.8°C). As Calvin transitions into June, a rise in the average high-temperature is observed, moving from a moderately hot 76.5°F (24.7°C) in May to a tropical 86.5°F (30.3°C). Weather in June »Weather in July
July, like June, is a hot summer month in Calvin, Oklahoma, with temperature in the range of an average high of 91.8°F (33.2°C) and an average low of 72.3°F (22.4°C). The introduction of July notes a subtle temperature variation to a still tropical 91.8°F (33.2°C) from June's 86.5°F (30.3°C). Weather in July »Weather in August
August, the last month of the summer in Calvin, is also a hot month, with temperature in the range of an average high of 92.1°F (33.4°C) and an average low of 71.2°F (21.8°C). August brings the highest temperatures, with an average high of 92.1°F (33.4°C) and an average low of 71.2°F (21.8°C). The heat index in August is computed to be a blistering 107.6°F (42°C). Weather in August »Weather in September
September, the first month of the autumn in Calvin, is also a moderately hot month, with an average temperature ranging between max 84.4°F (29.1°C) and min 64.6°F (18.1°C). The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a hot 92.1°F (33.4°C) in August to a moderately hot 84.4°F (29.1°C). Weather in September »Weather in October
October, the same as September, in Calvin, Oklahoma, is another pleasant autumn month, with temperature in the range of an average low of 53.6°F (12°C) and an average high of 71.6°F (22°C). October brings a drop in Calvin's average high-temperature, falling from a moderately hot 84.4°F (29.1°C) in September to an agreeable 71.6°F (22°C). Weather in October »Weather in November
The last month of the autumn, November, is also a moderate month in Calvin, Oklahoma, with an average temperature varying between 60.1°F (15.6°C) and 43.2°F (6.2°C). The arrival of November corresponds with a reduction in the average high-temperature, down from October's pleasant 71.6°F (22°C) to a moderate 60.1°F (15.6°C). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Calvin, Oklahoma, with an average temperature ranging between min 35.6°F (2°C) and max 49.6°F (9.8°C). The start of December signals a decrease in the average high-temperature, transitioning from a mild 60.1°F (15.6°C) in November to a chilly 49.6°F (9.8°C). Weather in December »Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The coldest temperatures occur during January, when averages reach a peak of 48.7°F (9.3°C) and a low of 33.3°F (0.7°C).
In Calvin, during the entire year, the rain falls for 131 days and collects up to 28.39" (721mm) of precipitation.
January through April, November and December are months with snowfall.
Throughout the year, there are 5.7 snowfall days, and 3.15" (80mm) of snow is accumulated.
The month with the least rainfall in Calvin is February, when the rain falls for 8.7 days and typically collects 1.42" (36mm) of precipitation.
February is the month with the most snowfall. Snow falls for 2.1 days and accumulates 1.54" (39mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Calvin, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
The most humid month is May, with an average relative humidity of 80%.
May is the month with the most rainfall. Rain falls for 15.1 days and accumulates 4.33" (110mm) of precipitation.
In Calvin, snow does not fall in May through October.
With an average of 14h and 30min of daylight, June has the longest days of the year.
The months with the highest UV index are June through August, with an average maximum UV index of 7.
Calvin's August weather, marked by an average high temperature of 92.1°F (33.4°C) and an average low temperature of 71.2°F (21.8°C), is the warmest in the year.
With an average relative humidity of 64%, August is the least humid month.
The month with the most sunshine is August, with an average of 11.1h of sunshine.
December has the shortest days of the year, with an average of 9h and 54min of daylight.
With an average of 5.7h of sunshine, December has the least sunshine of the year.
With an average maximum UV index of 2, December is the month with the lowest UV index.
Average temperature
Calvin, OK
The warmest month (with the highest average high temperature) is August (92.1°F).
The month with the lowest average high temperature is January (48.7°F).
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).
Average pressure
Calvin, OK
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.91"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Calvin, OK
- Average wind speed in January:
10.2mph - Average wind speed in February:
10.6mph - Average wind speed in March:
11mph - Average wind speed in April:
10.9mph - Average wind speed in May:
9.4mph - Average wind speed in June:
8.3mph
- Average wind speed in July:
7.3mph - Average wind speed in August:
7.4mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.1mph - Average wind speed in November:
10.1mph - Average wind speed in December:
9.6mph
The windiest month (with the highest average wind speed) is March (11mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity
Calvin, OK
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is August (64%).
Average rainfall
Calvin, OK
- Average rainfall in January:
1.57" - Average rainfall in February:
1.42" - Average rainfall in March:
2.44" - Average rainfall in April:
2.87" - Average rainfall in May:
4.33" - Average rainfall in June:
2.01"
- Average rainfall in July:
2.2" - Average rainfall in August:
2.83" - Average rainfall in September:
2.52" - Average rainfall in October:
3.07" - Average rainfall in November:
1.54" - Average rainfall in December:
1.57"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days
Calvin, OK
- Average rainfall days in January:
6.7 days - Average rainfall days in February:
8.7 days - Average rainfall days in March:
12 days - Average rainfall days in April:
13.2 days - Average rainfall days in May:
15.1 days - Average rainfall days in June:
10.8 days
- Average rainfall days in July:
13 days - Average rainfall days in August:
12 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
11.4 days - Average rainfall days in November:
7.9 days - Average rainfall days in December:
7.7 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (6.7 days).
Average snowfall
Calvin, OK
The month with the highest snowfall is February (1.54").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Calvin, OK
- Average snowfall days in January:
1.4 days - Average snowfall days in February:
2.1 days - Average snowfall days in March:
0.6 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
1 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Calvin, OK
- Average daylight in January:
10h and 6min - Average daylight in February:
10h and 54min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 30min
- Average daylight in July:
14h and 12min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 18min - Average daylight in December:
9h and 54min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
5h and 54min - Average sunshine in February:
6h and 36min - Average sunshine in March:
6h and 54min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 36min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
11h and 0min - Average sunshine in August:
11h and 6min - Average sunshine in September:
8h and 36min - Average sunshine in October:
6h and 36min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 42min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days
Calvin, OK
- Average sunshine days in January:
22.5 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
16.2 days - Average sunshine days in April:
14.6 days - Average sunshine days in May:
14.5 days - Average sunshine days in June:
16.2 days
- Average sunshine days in July:
15.8 days - Average sunshine days in August:
16.4 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
18.1 days - Average sunshine days in November:
20.4 days - Average sunshine days in December:
20.9 days
The month with the most sunshine days is January (22.5 days).
The month with the least sunshine days is May (14.5 days).
Average UV index
Calvin, OK
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover
Calvin, OK
The months with the most cloud cover are February and March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility
Calvin, OK
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
