Climate and monthly weather forecastWinchester, OK
Climate and monthly weather forecast
Weather in January
January, like December, is another chilly winter month in Winchester, Oklahoma, with temperature in the range of an average high of 47.7°F (8.7°C) and an average low of 31.6°F (-0.2°C). January brings the lowest temperatures, with an average high of 47.7°F (8.7°C) and an average low of 31.6°F (-0.2°C). Weather in January »Weather in February
February, the last month of the winter in Winchester, is a fresh month, with an average temperature varying between 35.1°F (1.7°C) and 50.9°F (10.5°C). The onset of February marks an average high-temperature of a cool 50.9°F (10.5°C), hardly differing from January's 47.7°F (8.7°C). Weather in February »Weather in March
March, the first month of the spring in Winchester, is a comfortable month, with an average temperature fluctuating between 62.2°F (16.8°C) and 44.8°F (7.1°C). March's onset brings a rise in the average high-temperature, moving from a cool 50.9°F (10.5°C) in February to a comfortable 62.2°F (16.8°C). Weather in March »Weather in April
April in Winchester, Oklahoma, is a pleasant spring month, with an average temperature varying between 51.1°F (10.6°C) and 69.6°F (20.9°C). In April, the average high-temperature marginally rises from an enjoyable 62.2°F (16.8°C) in March to an agreeable 69.6°F (20.9°C). Weather in April »Weather in May
May, the last month of the spring in Winchester, is a warm month, with temperature in the range of an average low of 59.9°F (15.5°C) and an average high of 76.5°F (24.7°C). May showcases a minor temperature ascent, adjusting from April's agreeable 69.6°F (20.9°C) to a warm 76.5°F (24.7°C). Weather in May »Weather in June
June, the first month of the summer in Winchester, is a hot month, with an average temperature varying between 69.4°F (20.8°C) and 86.9°F (30.5°C). The arrival of June brings a change in Winchester's weather, with average high-temperatures moving from May's 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 a hot summer month in Winchester, Oklahoma, with temperature in the range of an average low of 72.1°F (22.3°C) and an average high of 91.4°F (33°C). July brings an average high-temperature of a still tropical 91.4°F (33°C), showing a slight difference from June's 86.9°F (30.5°C). Weather in July »Weather in August
August, the last month of the summer in Winchester, is another tropical month, with an average temperature varying between 71.1°F (21.7°C) and 91.6°F (33.1°C). August is Winchester's warmest month, registering average high temperatures of 91.6°F (33.1°C) and lows of 71.1°F (21.7°C). The heat index value during August is computed to be a scorching 107.6°F (42°C). Weather in August »Weather in September
September, the first month of the autumn in Winchester, is still a warm month, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 84.2°F (29°C). September is characterized by a slight reduction in average high-temperature, easing from a hot 91.6°F (33.1°C) in August to a warm 84.2°F (29°C). Weather in September »Weather in October
October, like September, is an agreeable autumn month in Winchester, Oklahoma, with temperature in the range of an average high of 71.2°F (21.8°C) and an average low of 53.2°F (11.8°C). With October's arrival, Winchester sees a decrease in average high-temperatures, moving from a warm 84.2°F (29°C) in September to an agreeable 71.2°F (21.8°C). Weather in October »Weather in November
The last month of the autumn, November, is another refreshing month in Winchester, Oklahoma, with an average temperature fluctuating between 43.2°F (6.2°C) and 59.7°F (15.4°C). Winchester's transition into November involves a shift in temperature, receding from a pleasant 71.2°F (21.8°C) in October to a refreshing 59.7°F (15.4°C). Weather in November »Weather in December
December, the first month of the winter in Winchester, is also a frosty month, with an average temperature ranging between min 34.9°F (1.6°C) and max 49.3°F (9.6°C). Stepping into December, Winchester observes a temperature decline, with the average high falling from November's moderate 59.7°F (15.4°C) to a chilly 49.3°F (9.6°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Winchester, 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
Winchester, 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
Winchester, 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
Winchester, OK
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is August (66%).
Average rainfall
Winchester, 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
Winchester, 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
Winchester, 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
Winchester, 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
Winchester, 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 6min - Average daylight in June:
14h and 30min
- Average daylight in July:
14h and 18min - Average daylight in August:
13h and 30min - 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 48min
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 48min - Average sunshine in February:
6h and 30min - Average sunshine in March:
6h and 48min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 30min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 48min - Average sunshine in August:
11h and 0min - Average sunshine in September:
8h and 48min - Average sunshine in October:
6h and 24min - Average sunshine in November:
5h and 54min - Average sunshine in December:
5h and 36min
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
Winchester, 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
Winchester, 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
Winchester, 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
Winchester, 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).





