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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is a frosty winter month in Grayson, Oklahoma, with an average temperature ranging between min 31.6°F (-0.2°C) and max 47.7°F (8.7°C). January, with an average high of 47.7°F (8.7°C) and a low of 31.6°F (-0.2°C), signifies the coldest month of the year. Weather in January »
Weather in February
February, the last month of the winter in Grayson, is a fresh month, with an average temperature varying between 35.1°F (1.7°C) and 50.9°F (10.5°C). February registers an average high-temperature of a cool 50.9°F (10.5°C), slightly varied from January's 47.7°F (8.7°C). Weather in February »
Weather in March
The first month of the spring, March, is a refreshing month in Grayson, Oklahoma, with an average temperature fluctuating between 44.8°F (7.1°C) and 62.2°F (16.8°C). The start of March brings a rise in the average high-temperature, moving from a cool 50.9°F (10.5°C) in February to a refreshing 62.2°F (16.8°C). Weather in March »
Weather in April
April in Grayson, Oklahoma, is an agreeable spring month, with an average temperature fluctuating between 51.1°F (10.6°C) and 69.6°F (20.9°C). As March transitions into April, Grayson notices a gentle rise in the average high-temperature, transitioning from an enjoyable 62.2°F (16.8°C) to a pleasant 69.6°F (20.9°C). Weather in April »
Weather in May
May, the last month of the spring in Grayson, is a warm month, with an average temperature ranging between max 76.5°F (24.7°C) and min 59.9°F (15.5°C). May's onset brings a minor rise in the average high-temperature, moving from an agreeable 69.6°F (20.9°C) in April to a warm 76.5°F (24.7°C). Weather in May »
Weather in June
June, the first month of the summer in Grayson, is a tropical month, with temperature in the range of an average low of 69.4°F (20.8°C) and an average high of 86.9°F (30.5°C). As May transitions into June, Grayson sees a rise in the average high-temperature, moving from a warm 76.5°F (24.7°C) to a tropical 86.9°F (30.5°C). Weather in June »
Weather in July
July, like June, is another tropical summer month in Grayson, Oklahoma, with an average temperature varying between 72.1°F (22.3°C) and 91.4°F (33°C). Grayson in July witnesses an average high-temperature of a still hot 91.4°F (33°C), indicating a slight variation from June's 86.9°F (30.5°C). Weather in July »
Weather in August
The last month of the summer, August, is another tropical month in Grayson, Oklahoma, with an average temperature fluctuating between 91.6°F (33.1°C) and 71.1°F (21.7°C). Grayson's August weather reaches an average high of 91.6°F (33.1°C) and an average low of 71.1°F (21.7°C), making it the warmest month. The average heat index in August is calculated to be a blistering 107.6°F (42°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Grayson, Oklahoma, with an average temperature varying between 64°F (17.8°C) and 84.2°F (29°C). The shift from August to September coincides with a small decrease in the average high-temperature, down to a moderately hot 84.2°F (29°C) from a tropical 91.6°F (33.1°C). Weather in September »
Weather in October
October, the same as September, in Grayson, Oklahoma, is another pleasant autumn month, with temperature in the range of an average low of 53.2°F (11.8°C) and an average high of 71.2°F (21.8°C). Grayson observes a minor decrease in the average high-temperature with the arrival of October, falling from September's moderately hot 84.2°F (29°C) to a pleasant 71.2°F (21.8°C). Weather in October »
Weather in November
November, the last month of the autumn in Grayson, is also a moderate month, with temperature in the range of an average low of 43.2°F (6.2°C) and an average high of 59.7°F (15.4°C). The beginning of November marks a decrease in the average high-temperature, transitioning from a pleasant 71.2°F (21.8°C) in October to a moderate 59.7°F (15.4°C). Weather in November »
Weather in December
December, the first month of the winter in Grayson, is still a chilly month, with an average temperature varying between 49.3°F (9.6°C) and 34.9°F (1.6°C). As Grayson, Oklahoma, enters December, the average high-temperature decreases from the a mild 59.7°F (15.4°C) of November to a chilly 49.3°F (9.6°C). Weather in December »
Updated: Aug 3, 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
What time of the year is the coldest?
January, known for its average high temperature of 47.7°F (8.7°C) and an average low temperature of 31.6°F (-0.2°C), is the coldest month.
How much does it rain?
Throughout the year, there are 136.7 rainfall days, and 30.67" (779mm) of precipitation is accumulated.
When does it snow?
January through April, November and December are months with snowfall.
How much does it snow?
In Grayson, during the entire year, snow falls for 6.1 days and aggregates up to 3.7" (94mm) of snow.
What is the driest month?
The month with the least rainfall is February, when the rain falls for 8.8 days and typically collects 1.46" (37mm) of precipitation.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 2.2 days and typically aggregates up to 1.73" (44mm) of snow.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.
What is the most humid month?
May is the most humid month, with an average relative humidity of 80%.
What is the wettest month in Grayson?
May is the month with the most rainfall. Rain falls for 15.5 days and accumulates 5" (127mm) of precipitation.
When it does not snow?
May through October are months without snowfall.
When are the longest days?
June has the longest days of the year, with an average of 14h and 30min of daylight.
What is the month with the highest UV index?
June through August, with an average maximum UV index of 7, are months with the highest UV index.
What is the hottest time of year?
In Grayson, August is known for its average highest temperatures, reaching a high of 91.6°F (33.1°C) and a low of 71.1°F (21.7°C).
What is the least humid month?
The least humid month is August, with an average relative humidity of 66%.
What month has the most sunshine?
With an average of 11h of sunshine, August has the most sunshine of the year.
What is the month with the shortest days?
With an average of 9h and 48min of daylight, December has the shortest days of the year.
What is the month with the least sunshine in Grayson?
With an average of 5.6h of sunshine, December has the least sunshine of the year.
What is the month with the lowest UV index?
The month with the lowest UV index is December, with an average maximum UV index of 2.
Average temperature
Grayson, OK
The warmest month (with the highest average high temperature) is August (91.6°F).
The month with the lowest average high temperature is January (47.7°F).
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure
Grayson, OK
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
29.99"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 (29.9"Hg).
Average wind speed
Grayson, OK
- Average wind speed in January:
9.8mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.6mph - Average wind speed in April:
10.5mph - Average wind speed in May:
8.9mph - Average wind speed in June:
8mph
- Average wind speed in July:
7mph - Average wind speed in August:
7mph - Average wind speed in September:
7.2mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.2mph
The windiest month (with the highest average wind speed) is March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity
Grayson, OK
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is August (66%).
Average rainfall
Grayson, OK
- Average rainfall in January:
1.61" - Average rainfall in February:
1.46" - Average rainfall in March:
2.64" - Average rainfall in April:
2.83" - Average rainfall in May:
5" - Average rainfall in June:
2.24"
- Average rainfall in July:
2.56" - Average rainfall in August:
2.83" - Average rainfall in September:
2.87" - Average rainfall in October:
3.35" - Average rainfall in November:
1.65" - Average rainfall in December:
1.61"
The wettest month (with the highest rainfall) is May (5").
The driest month (with the least rainfall) is February (1.46").
Average rainfall days
Grayson, OK
- Average rainfall days in January:
6.4 days - Average rainfall days in February:
8.8 days - Average rainfall days in March:
12.4 days - Average rainfall days in April:
14.7 days - Average rainfall days in May:
15.5 days - Average rainfall days in June:
12.3 days
- Average rainfall days in July:
13.4 days - Average rainfall days in August:
12.6 days - Average rainfall days in September:
12.6 days - Average rainfall days in October:
12.1 days - Average rainfall days in November:
8.3 days - Average rainfall days in December:
7.6 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (6.4 days).
Average snowfall
Grayson, OK
The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Grayson, OK
- Average snowfall days in January:
1.5 days - Average snowfall days in February:
2.2 days - Average snowfall days in March:
0.5 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:
0.4 days - Average snowfall days in December:
1.4 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Grayson, OK
- Average daylight in January:
10h and 1min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 3min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 2min - Average daylight in December:
9h and 5min
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 48min).
- Average sunshine in January:
5h and 5min - Average sunshine in February:
6h and 3min - Average sunshine in March:
6h and 5min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 3min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
11h and 0min - Average sunshine in September:
8h and 5min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days
Grayson, OK
- Average sunshine days in January:
21.9 days - Average sunshine days in February:
16.2 days - Average sunshine days in March:
16.3 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
13.1 days - Average sunshine days in June:
15.5 days
- Average sunshine days in July:
16 days - Average sunshine days in August:
16.7 days - Average sunshine days in September:
16 days - Average sunshine days in October:
17.4 days - Average sunshine days in November:
20 days - Average sunshine days in December:
20.9 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is May (13.1 days).
Average UV index
Grayson, 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
Grayson, OK
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility
Grayson, 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).
Grayson, Oklahoma, USA
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