April weather forecastHelena, OK
April
Weather in April
April is an agreeable spring month in Helena, Oklahoma, with temperature in the range of an average low of 48.7°F (9.3°C) and an average high of 69.4°F (20.8°C).Temperature
April's arrival signals a modest temperature shift, moving from an enjoyable 61.2°F (16.2°C) in March to an agreeable 69.4°F (20.8°C). An average low-temperature of 48.7°F (9.3°C) is observed during the April nights.Humidity
In Helena, the average relative humidity in April is 65%.Rainfall
In Helena, during April, the rain falls for 12 days and regularly aggregates up to 1.85" (47mm) of precipitation. Throughout the year, there are 103.1 rainfall days, and 18.11" (460mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Helena, Oklahoma, in April, during 0.2 snowfall days, 0.08" (2mm) of snow is typically accumulated. In Helena, during the entire year, snow falls for 8.7 days and aggregates up to 4.06" (103mm) of snow.Daylight
The average length of the day in April is 13h and 9min.On the first day of the month, sunrise is at 7:17 am and sunset at 7:55 pm. On the last day of April, sunrise is at 6:39 am and sunset at 8:20 pm CDT.
Sunshine
The average sunshine in April in Helena is 8.8h.UV index
The average daily maximum UV index in April in Helena, Oklahoma, is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 during April translates into the following directions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Helena, OK
- Average high temperature in April: 69.4°F
The warmest month (with the highest average high temperature) is July (95.2°F).
The month with the lowest average high temperature is January (46.4°F).
- Average low temperature in April: 48.7°F
The month with the highest average low temperature is July (75.2°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in April
Helena, OK
- Average pressure in April: 29.89"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in April
Helena, OK
- Average wind speed in April: 11.8mph
The windiest month (with the highest average wind speed) is April (11.8mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).
Average humidity in April
Helena, OK
- Average humidity in April: 65%
The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is July (54%).
Average rainfall in April
Helena, OK
- Average rainfall in April: 1.85"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in April
Helena, OK
- Average rainfall days in April: 12 days
The month with the highest number of rainy days is May (13.2 days).
The month with the least rainy days is December (3.6 days).
Average snowfall in April
Helena, OK
- Average snowfall in April: 0.08"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Helena, OK
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Helena, OK
- Average daylight in April: 13h and 12min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in April: 8h and 48min
The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in April
Helena, OK
- Average sunshine days in April: 16.8 days
The month with the most sunshine days is January (25.5 days).
The month with the least sunshine days is May (15 days).
Average UV index in April
Helena, OK
- Average UV index in April: 4
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 in April
Helena, OK
- Average cloud cover in April: 33
The months with the most cloud cover are March and April (Cloud cover 33).
The month with the least cloud cover is June (Cloud cover 17).
Average visibility in April
Helena, OK
- Average visibility in April: 6mi
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).
