Calvin, OK Weather
Calvin, OK climate is hot during summer when temperatures tend to be in the 80's and very cold during winter when temperatures tend to be in the 30's.
The warmest month of the year is August with an average maximum temperature of 92.90 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 25.20 degrees Fahrenheit.
Temperature variations between night and day tend to be moderate during summer with a difference that can reach 24 degrees Fahrenheit, and moderate during winter with an average difference of 23 degrees Fahrenheit.
The annual average precipitation at Calvin is 41.68 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is May with an average rainfall of 5.68 Inches.
Weather Data
Weather Warnings
| Frost advisory in effect from 11 pm this evening to 9 am cst Wednesday . |
Current Conditions
|
Fair, 41°F | Humidity: 61% | Dewpoint: 28°F |
| Wind Speed: W 5.8 MPH (5 KT) | Heat Index: 41°F | ||
| Barometer: 30.21 in. | Wind Chill: 37°F |
Weather Forecast
 | Tonight: Clear. Lows in the lower 30s. Northwest winds around 10 mph in the evening becoming light and variable. | |
| Lo: 31°F | ||
 | Hi: 61°F | Wednesday: Sunny. Highs in the lower 60s. Light and variable winds becoming northwest around 10 mph in the afternoon. |
| Lo: 35°F | ||
| Hi: 60°F | Thanksgiving day: Sunny. Highs around 60. West winds up to 10 mph. |
| Lo: 35°F | ||
| Hi: 69°F | Friday: Sunny. Highs in the upper 60s. |
| Lo: 49°F | ||
 | Hi: 65°F | Saturday: Partly cloudy. Lows in the upper 40s. Highs in the mid 60s. |
| Lo: 45°F | ||
 | Hi: 51°F | Sunday: Mostly cloudy with chance of thunderstorms. Cooler. Highs in the lower 50s. Chance of thunderstorms 50 percent. |
| Lo: 39°F | ||
 | Hi: 49°F | Monday: Partly cloudy with slight chance of rain. Highs in the upper 40s. Chance of rain 20 percent. |
| Lo: 35°F |
Moon, Sunrise and Sunset
 |
Moon Phase: Waxing Gibbous Moon | Civil Twilight: 6:40 AM CST |
Sunrise: 7:07 AM CST |
| Sunset: 5:15 PM CST |
Civil Twilight: 5:42 PM CST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 47.7 | 54.2 | 62.2 | 71.2 | 78.8 | 86.4 | 92.7 | 92.9 | 84.7 | 74.4 | 60.8 | 50.9 | 71.4 |
| Mean °F | 36.5 | 42.2 | 49.9 | 59.3 | 68.3 | 75.9 | 81.3 | 80.5 | 72.7 | 61.9 | 49.3 | 40.0 | 59.8 |
| Min °F | 25.2 | 30.1 | 37.6 | 47.3 | 57.8 | 65.4 | 69.8 | 68.0 | 60.7 | 49.4 | 37.7 | 29.0 | 48.2 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 1.86 | 2.23 | 3.76 | 4.43 | 5.68 | 4.62 | 2.69 | 2.40 | 4.22 | 3.97 | 3.22 | 2.60 | 41.68 |
