Climate and monthly weather forecastBethany, OK
Climate and monthly weather forecast
The climate of Bethany
Bethany, Oklahoma, in the United States, falls under the Köppen climate classification of Cfa, indicating a humid subtropical climate with no dry season. The geographical position of the city contributes significantly to this climate type. The area sees relatively high humidity averaging 66%, and experiences frequent changes in weather conditions, including varying temperatures and precipitation patterns throughout the year.The temperature in Bethany ranges from a low of 31.6°F (-0.2°C) in January, to a high of 93.7°F (34.3°C) in July. The onset of spring in March sees a noticeable increase in temperature, jumping from 51.3°F (10.7°C) in February to 62.2°F (16.8°C). However, December records a significant drop in temperature, down to 49.1°F (9.5°C) from 59.5°F (15.3°C) in the previous month, November. Additionally, the amount of rainfall varies within the year, with the highest recorded in May at 4.09" (104mm), while the lowest falls in December at 0.94" (24mm).
Bethany also experiences sporadic snowfall, mainly from December to March, with January and February reporting the most notable amounts of 1.14" (29mm) and 1.3" (33mm) respectively. The rest of the year is practically snow-free. Interestingly, the highest average relative humidity of 73% is observed in May, the same month that also experiences the highest rainfall, suggesting a strong correlation between these two weather parameters.
The best time to visit Bethany
Based on the climate data, the most pleasant period to visit Bethany would be from late spring to early summer; specifically, between May and June. During this period, the temperatures average between a comfortable 70°F (21.1°C) and 89.1°F (31.7°C), offering ideal conditions for outdoor activities. Additionally, the average daylight is at an annual peak of 14.1 to 14.5 hours, providing a longer day for visitors engaged in sightseeing and other tourist activities.The worst time to visit Bethany
On the other hand, the least favorable period to visit Bethany would be in the heart of winter, specifically between December and February. These are the coldest months, with average temperatures plummeting to a chilly 31.6°F (-0.2°C) in January. The region also experiences significant snowfall during these months.Spring weather in Bethany
March marks the onset of spring in Bethany, which lasts until May. During this period, weather conditions exhibit a marked transformation from the chill of winter to more moderate temperatures ranging from 62.2°F (16.8°C) in March to 77.9°F (25.5°C) in May. In line with the rising temperatures, the rainfall also tends to increase during this period, from 1.65" (42mm) in March to an annual high of 4.09" (104mm) in May.Summer weather in Bethany
Summer rolls into Bethany from June until August. These are the hottest months, with July recording the highest temperature of 93.7°F (34.3°C). However, it is also the season with the least humidity, averaging 61% in July, and rainfall tends to decline, averaging 2.28" (58mm) in June and July, and dropping slightly to 2.2" (56mm) in August.Autumn weather in Bethany
Autumn in Bethany occurs from September to November. Temperatures start dropping from 84.6°F (29.2°C) in September to a milder 59.5°F (15.3°C) in November. Rainfall begins to decrease as well after peaking in September at 2.76" (70mm), and gradual descends to 1.1" (28mm) by November.Winter weather in Bethany
Winter comes to Bethany from December through February. These months register the lowest temperatures with January being the coldest, averaging 31.6°F (-0.2°C). Snowfall is also a common phenomenon during these months, with 1.14" (29mm) in December and 1.3" (33mm) in January, and tends to cease by February with a minor 0.35" (9mm) remaining. It is also noteworthy that the average daylight decreases to its annual minimum of 9.8 hours in December.Weather in January
January ushers in the new year with some of the coldest temperatures in Bethany, Oklahoma. Moderate rainfall can be expected to accompany the generally cool climate. A defining characteristic of the month is the snowfall of 1.14" (29mm) with snowfall seen over a couple of days. Weather in January »Weather in February
The weather begins to gradually heat up in February. There is a slight increase in rainfall from January, going hand in hand with the rise in humidity. One notable feature of February's weather is the snowfall of 1.3" (33mm), further contributing to the chilly climate. Weather in February »Weather in March
March witnesses the shift towards the spring season in Bethany. While the temperature keeps rising, this progress is counterbalanced by a decrease in snowfall down to 0.35" (9mm). Increased periods of sunshine appear, thanks to the receding cloud cover, which make community outdoor activities feasible. Weather in March »Weather in April
April weather takes a definitive turn towards warmer temperatures in Bethany. The departure from wintry conditions is underscored by a sharp decrease in snowfall, dwindling to a mere 0.04" (1mm). Rainfall levels rise, along with the number of rainy days, emphasizing April's reputation for showers. Weather in April »Weather in May
With May comes the quintessential summer feel in the city of Bethany. A comfortable increase in temperature is observed with no snowfall, marking the end of the winter season remnants. Rainfall spikes considerably, with the total average being the highest in the year, signifying May as the wettest month. Weather in May »Weather in June
June ensures the full arrival of summer in Bethany with the mercury rising to even higher levels. The wet May weather makes way for a drier atmosphere, contributing to the decreased levels of relative humidity. This month showcases the longest daylight hours with the sun shining brightly for nearly half the day. Weather in June »Weather in July
July typically sees the mercury rise to its peak in Bethany, asserting itself as the hottest month. With temperatures soaring high, snowfall is an unthinkable probability. However, the heat doesn't deter the clouds, which persistently offer a respite from the constant sunshine and high UV index. Weather in July »Weather in August
August weather in Bethany is distinguished by slightly milder temperatures when compared to the peak warmth in July. The rainfall is relatively steady, maintaining a balance between the warm temperature and humidity levels. The dearth of snowfall persists in accordance with the seasonal cycle. Weather in August »Weather in September
September marks the onset of fall in Bethany. As the city bids goodbye to the hot summer, a comfortable drop in temperature takes place. The decreased daylight hours subtly hint at the eventual transition to winter. Despite these noticeable changes, September continues to offer quality sunshine and composes an ideal weather scenario. Weather in September »Weather in October
The weather in October displays a clear shift towards cooler temperatures. Rainfall decreases, signifying a slow approach towards drier months. Despite the dwindling daylight hours, sunshine persists, giving an illusion of extended daytime. Weather in October »Weather in November
November in Bethany is characterized by a noticeable drop in all climatic parameters, indicating the beginning of winter. The most striking characteristic of the month is the sharp decrease in average high temperatures accompanied by a rise in wind speed. Weather in November »Weather in December
Rounding up the year, December brings back colder temperatures in Bethany, the snowfall again being a possibility with 0.55" (14mm). The daylight hours are limited, but the city remains fairly sunlit. Despite the cold, the overall December weather remains quite stable with no significant hikes or drops in the climatic parameters. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Bethany, OK
The warmest month (with the highest average high temperature) is July (93.7°F).
The month with the lowest average high temperature is January (48.6°F).
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure
Bethany, OK
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.9"Hg - Average pressure in May:
29.9"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"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 (29.87"Hg).
Average wind speed
Bethany, OK
- Average wind speed in January:
11.1mph - Average wind speed in February:
11.6mph - Average wind speed in March:
12.1mph - Average wind speed in April:
12.4mph - Average wind speed in May:
10.9mph - Average wind speed in June:
10.6mph
- Average wind speed in July:
9mph - Average wind speed in August:
8.7mph - Average wind speed in September:
9mph - Average wind speed in October:
10.6mph - Average wind speed in November:
11.4mph - Average wind speed in December:
10.5mph
The windiest month (with the highest average wind speed) is April (12.4mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity
Bethany, OK
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (59%).
Average rainfall
Bethany, OK
- Average rainfall in January:
1.02" - Average rainfall in February:
1.02" - Average rainfall in March:
1.65" - Average rainfall in April:
2.72" - Average rainfall in May:
4.09" - Average rainfall in June:
2.28"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is December (0.94").
Average rainfall days
Bethany, OK
- Average rainfall days in January:
4.4 days - Average rainfall days in February:
6.8 days - Average rainfall days in March:
11 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
14.6 days - Average rainfall days in June:
11 days
- Average rainfall days in July:
12.6 days - Average rainfall days in August:
11.3 days - Average rainfall days in September:
13 days - Average rainfall days in October:
10.2 days - Average rainfall days in November:
6.7 days - Average rainfall days in December:
6 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (4.4 days).
Average snowfall
Bethany, OK
The month with the highest snowfall is February (1.3").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Bethany, OK
- Average snowfall days in January:
2 days - Average snowfall days in February:
3.2 days - Average snowfall days in March:
0.8 days - Average snowfall days in April:
0.3 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:
0.1 days - Average snowfall days in November:
0.6 days - Average snowfall days in December:
1.9 days
The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Bethany, 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:
6h and 12min - Average sunshine in February:
7h and 18min - Average sunshine in March:
7h and 24min - Average sunshine in April:
8h and 24min - Average sunshine in May:
9h and 6min - Average sunshine in June:
10h and 54min
- Average sunshine in July:
11h and 6min - Average sunshine in August:
11h and 0min - Average sunshine in September:
8h and 36min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 12min - Average sunshine in December:
6h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days
Bethany, OK
- Average sunshine days in January:
24.3 days - Average sunshine days in February:
18.4 days - Average sunshine days in March:
17.7 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
13.8 days - Average sunshine days in June:
16.4 days
- Average sunshine days in July:
16.6 days - Average sunshine days in August:
16.7 days - Average sunshine days in September:
14.4 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
21.7 days - Average sunshine days in December:
22.5 days
The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is May (13.8 days).
Average UV index
Bethany, 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
Bethany, OK
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility
Bethany, 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).





