Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
Observing a slight rise in April, the average high-temperature shifts from March's refreshing 61.2°F (16.2°C) to an agreeable 69.4°F (20.8°C). In April, in Helena, the average low-temperature is a frosty 48.7°F (9.3°C).Humidity
The average relative humidity in April in Helena, Oklahoma, 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
Months with snowfall are January through May, October through December. In April, in Helena, it is snowing for 0.2 days. Throughout April, 0.08" (2mm) of snow is accumulated. Throughout the year, in Helena, there are 8.7 snowfall days, and 4.06" (103mm) of snow is accumulated.Daylight
The average length of the day in April in Helena, Oklahoma, is 13h and 9min.On the first day of April, sunrise is at 7:17 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 8:20 pm CDT.
Sunshine
In April, the average sunshine is 8.8h.UV index
In April, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In April, the average maximum UV index of 4 translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the temperature in April in Helena?
What is the average humidity in April in Helena?
How many days does it rain in April in Helena?
How many days does it snow in April in Helena?
What is the average length of the day in April in Helena?
When are sunrise and sunset in April in Helena?
How many hours of sunshine does Helena have in April?
What is the UV index intensity in April in Helena?
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 1min
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 5min
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).
Helena, Oklahoma, USA
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