Climate and monthly weather forecastGrant, OK
Climate and monthly weather forecast
Weather in January
January, like December, in Grant, Oklahoma, is a cool winter month, with an average temperature fluctuating between 51.4°F (10.8°C) and 35.2°F (1.8°C). The lowest temperatures are recorded in January, with averages reaching a high of 51.4°F (10.8°C) and a low of 35.2°F (1.8°C). Weather in January »Weather in February
The last month of the winter, February, is another cool month in Grant, Oklahoma, with temperature in the range of an average high of 55°F (12.8°C) and an average low of 38.8°F (3.8°C). The transition from January to February brings an average high-temperature of a still fresh 55°F (12.8°C), barely different from January's 51.4°F (10.8°C). Weather in February »Weather in March
The first month of the spring, March, is a comfortable month in Grant, Oklahoma, with an average temperature fluctuating between 64.2°F (17.9°C) and 46.6°F (8.1°C). March brings a rise in the average high-temperature, transitioning from February's cool 55°F (12.8°C) to a comfortable 64.2°F (17.9°C). Weather in March »Weather in April
April in Grant, Oklahoma, is an agreeable spring month, with an average temperature fluctuating between 72.1°F (22.3°C) and 53.2°F (11.8°C). With the onset of April, Grant experiences a subtle temperature shift, with the average high-temperature moving from a comfortable 64.2°F (17.9°C) in March to a pleasant 72.1°F (22.3°C). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Grant, Oklahoma, with an average temperature ranging between min 61.3°F (16.3°C) and max 79.5°F (26.4°C). The onset of May marks a slight increase in the average high-temperature, moving from a pleasant 72.1°F (22.3°C) in April to a warm 79.5°F (26.4°C). Weather in May »Weather in June
The first month of the summer, June, is a hot month in Grant, Oklahoma, with an average temperature varying between 70.2°F (21.2°C) and 89.2°F (31.8°C). As May gives way to June, the average high-temperature displays an increase, moving from a warm 79.5°F (26.4°C) to a tropical 89.2°F (31.8°C). Weather in June »Weather in July
July, like June, is another tropical summer month in Grant, Oklahoma, with an average temperature ranging between max 92.8°F (33.8°C) and min 72.5°F (22.5°C). Entering July, the average high-temperature is recorded at a still tropical 92.8°F (33.8°C), exhibiting a minimal shift from June's 89.2°F (31.8°C). Weather in July »Weather in August
August, the last month of the summer in Grant, is another tropical month, with an average temperature ranging between min 72.1°F (22.3°C) and max 93.9°F (34.4°C). The warmest period tends to be August, when average temperatures fluctuate between a high of 93.9°F (34.4°C) and a low of 72.1°F (22.3°C). During August, the heat index is calculated to be a blazing hot 114.8°F (46°C). Weather in August »Weather in September
The first month of the autumn, September, is still a tropical month in Grant, Oklahoma, with an average temperature varying between 86.7°F (30.4°C) and 66°F (18.9°C). September's onset brings a negligible change in high-temperatures, falling from 93.9°F (34.4°C) in August to a still hot 86.7°F (30.4°C). Weather in September »Weather in October
October, the same as September, is another warm autumn month in Grant, Oklahoma, with an average temperature fluctuating between 55°F (12.8°C) and 73.9°F (23.3°C). In Grant, entering October brings a temperature decrement, reducing from September's hot 86.7°F (30.4°C) to a warm 73.9°F (23.3°C). Weather in October »Weather in November
The last month of the autumn, November, is also an enjoyable month in Grant, Oklahoma, with temperature in the range of an average high of 62.1°F (16.7°C) and an average low of 45.5°F (7.5°C). The onset of November coincides with a reduction in the average high-temperature, falling from a warm 73.9°F (23.3°C) in October to a refreshing 62.1°F (16.7°C). Weather in November »Weather in December
The first month of the winter, December, is still a cool month in Grant, Oklahoma, with an average temperature varying between 38.3°F (3.5°C) and 52.7°F (11.5°C). The onset of December entails a temperature shift, as the average high-temperature decreases from an enjoyable 62.1°F (16.7°C) in November to a fresh 52.7°F (11.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Grant, OK
The warmest month (with the highest average high temperature) is August (93.9°F).
The month with the lowest average high temperature is January (51.4°F).
The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure
Grant, OK
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"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 (29.91"Hg).
Average wind speed
Grant, OK
- Average wind speed in January:
8.3mph - Average wind speed in February:
8.5mph - Average wind speed in March:
8.8mph - Average wind speed in April:
8.8mph - Average wind speed in May:
7.8mph - Average wind speed in June:
6.7mph
- Average wind speed in July:
6mph - Average wind speed in August:
5.9mph - Average wind speed in September:
6.3mph - Average wind speed in October:
7.3mph - Average wind speed in November:
8.1mph - Average wind speed in December:
7.8mph
The windiest months (with the highest average wind speed) are March and April (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity
Grant, OK
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (65%).
Average rainfall
Grant, OK
- Average rainfall in January:
1.93" - Average rainfall in February:
2.28" - Average rainfall in March:
3.23" - Average rainfall in April:
3.66" - Average rainfall in May:
4.8" - Average rainfall in June:
2.87"
- Average rainfall in July:
2.36" - Average rainfall in August:
3.27" - Average rainfall in September:
2.68" - Average rainfall in October:
3.9" - Average rainfall in November:
2.68" - Average rainfall in December:
2.95"
The wettest month (with the highest rainfall) is May (4.8").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days
Grant, OK
- Average rainfall days in January:
9.1 days - Average rainfall days in February:
11.1 days - Average rainfall days in March:
14.6 days - Average rainfall days in April:
13.1 days - Average rainfall days in May:
14.6 days - Average rainfall days in June:
12.7 days
- Average rainfall days in July:
12.7 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
12 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
9.7 days - Average rainfall days in December:
10.5 days
The months with the highest number of rainy days are March and May (14.6 days).
The month with the least rainy days is January (9.1 days).
Average snowfall
Grant, OK
The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Grant, OK
- Average snowfall days in January:
1 days - Average snowfall days in February:
1.4 days - Average snowfall days in March:
0.2 days - Average snowfall days in April:
0 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:
0.3 days - Average snowfall days in December:
0.5 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Grant, OK
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
13h and 54min - Average daylight in June:
14h and 24min
- 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 24min - Average daylight in December:
9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
5h and 30min - Average sunshine in February:
5h and 48min - Average sunshine in March:
6h and 36min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 30min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 54min - Average sunshine in September:
8h and 54min - Average sunshine in October:
6h and 6min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days
Grant, OK
- Average sunshine days in January:
19.6 days - Average sunshine days in February:
14.6 days - Average sunshine days in March:
15 days - Average sunshine days in April:
14.6 days - Average sunshine days in May:
14.5 days - Average sunshine days in June:
15.8 days
- Average sunshine days in July:
16 days - Average sunshine days in August:
16.3 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
18.1 days - Average sunshine days in November:
18.8 days - Average sunshine days in December:
19 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is May (14.5 days).
Average UV index
Grant, 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
Grant, OK
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility
Grant, 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).





