Climate and monthly weather forecastBig Delta, AK
Climate and monthly weather forecast
Weather in January
January, the same as December, is an extremely cold winter month in Big Delta, Alaska, with an average temperature ranging between min -5.8°F (-21°C) and max 5.4°F (-14.8°C). In Big Delta, the lowest average temperatures are observed in January, with a high of 5.4°F (-14.8°C) and a low of -5.8°F (-21°C). Weather in January »Weather in February
February, the last month of the winter in Big Delta, is another extremely cold month, with an average temperature ranging between min -0.2°F (-17.9°C) and max 13.8°F (-10.1°C). Big Delta in February observes a minor temperature shift, with average high-temperatures adjusting from 5.4°F (-14.8°C) in January to a still frigid cold 13.8°F (-10.1°C). Weather in February »Weather in March
The first month of the spring, March, is a freezing cold month in Big Delta, Alaska, with an average temperature ranging between max 21.6°F (-5.8°C) and min 1.9°F (-16.7°C). March's arrival signals a subtle increase in average high-temperatures, moving from February's frigid cold 13.8°F (-10.1°C) to a freezing cold 21.6°F (-5.8°C). Weather in March »Weather in April
April in Big Delta, Alaska, is a wintry spring month, with temperature in the range of an average low of 21.4°F (-5.9°C) and an average high of 38.3°F (3.5°C). Big Delta's weather experiences a significant temperature rise with the arrival of April, soaring from a subzero cold 21.6°F (-5.8°C) in March to a cold 38.3°F (3.5°C). Weather in April »Weather in May
The last month of the spring, May, is a mild month in Big Delta, Alaska, with an average temperature fluctuating between 57.9°F (14.4°C) and 40.1°F (4.5°C). The beginning of May marks a clear shift in the average high-temperature, advancing from April's cold 38.3°F (3.5°C) to a mild 57.9°F (14.4°C). Weather in May »Weather in June
June, the first month of the summer in Big Delta, is an enjoyable month, with an average temperature fluctuating between 48.4°F (9.1°C) and 67.6°F (19.8°C). In Big Delta, the onset of June comes with an increased average high-temperature, moving from May's moderate 57.9°F (14.4°C) to a still refreshing 67.6°F (19.8°C). Weather in June »Weather in July
July is a pleasant summer month in Big Delta, Alaska, with an average temperature ranging between max 69.8°F (21°C) and min 50.5°F (10.3°C). Temperature readings reach their annual highs in July, averaging 69.8°F (21°C) and a minimum average of 50.5°F (10.3°C). Weather in July »Weather in August
The last month of the summer, August, is another refreshing month in Big Delta, Alaska, with temperature in the range of an average high of 64.4°F (18°C) and an average low of 46.2°F (7.9°C). During the shift to August, a minor reduction in average high-temperature is observed, shifting from an agreeable 69.8°F (21°C) in July to a refreshing 64.4°F (18°C). Weather in August »Weather in September
The first month of the autumn, September, is still a cool month in Big Delta, Alaska, with temperature in the range of an average low of 37.9°F (3.3°C) and an average high of 53.6°F (12°C). Setting in of September comes with a decrease in the average high-temperature, moving from a comfortable 64.4°F (18°C) in August to a cool 53.6°F (12°C). Weather in September »Weather in October
October, the same as September, is a wintry autumn month in Big Delta, Alaska, with an average temperature varying between 35.8°F (2.1°C) and 25.3°F (-3.7°C). As October sets, the average high-temperature displays a significant decrease, moving down from a cool 53.6°F (12°C) in September to a cold 35.8°F (2.1°C). Weather in October »Weather in November
The last month of the autumn, November, is also a subzero cold month in Big Delta, Alaska, with an average temperature fluctuating between 14°F (-10°C) and 4.1°F (-15.5°C). November is characterized by a clear drop in the average high-temperature, falling from October's cold 35.8°F (2.1°C) to a freezing cold 14°F (-10°C). Weather in November »Weather in December
The first month of the winter, December, is also a frigid cold month in Big Delta, Alaska, with temperature in the range of an average low of -1.5°F (-18.6°C) and an average high of 9.1°F (-12.7°C). As November turns into December, the average high-temperatures rest at an extremely cold 9.1°F (-12.7°C), showing a minor variation from the prior month. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Big Delta, AK
The warmest month (with the highest average high temperature) is July (69.8°F).
The month with the lowest average high temperature is January (5.4°F).
The month with the highest average low temperature is July (50.5°F).
The coldest month (with the lowest average low temperature) is January (-5.8°F).
Average pressure
Big Delta, AK
- Average pressure in January:
29.92"Hg - Average pressure in February:
29.97"Hg - Average pressure in March:
29.91"Hg - Average pressure in April:
29.86"Hg - Average pressure in May:
29.89"Hg - Average pressure in June:
29.83"Hg
- Average pressure in July:
29.9"Hg - Average pressure in August:
29.84"Hg - Average pressure in September:
29.77"Hg - Average pressure in October:
29.79"Hg - Average pressure in November:
29.85"Hg - Average pressure in December:
29.85"Hg
The month with the highest atmospheric pressure is February (29.97"Hg).
The month with the lowest atmospheric pressure is September (29.77"Hg).
Average wind speed
Big Delta, AK
- Average wind speed in January:
5.3mph - Average wind speed in February:
5.6mph - Average wind speed in March:
5.1mph - Average wind speed in April:
5.4mph - Average wind speed in May:
5.8mph - Average wind speed in June:
5.2mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5mph - Average wind speed in September:
5.3mph - Average wind speed in October:
5.2mph - Average wind speed in November:
4.9mph - Average wind speed in December:
5.3mph
The windiest month (with the highest average wind speed) is May (5.8mph).
The calmest month (with the lowest average wind speed) is November (4.9mph).
Average humidity
Big Delta, AK
The month with the highest relative humidity is March (88%).
The month with the lowest relative humidity is May (51%).
Average rainfall
Big Delta, AK
- Average rainfall in January:
0.28" - Average rainfall in February:
0.24" - Average rainfall in March:
0.39" - Average rainfall in April:
0.43" - Average rainfall in May:
0.55" - Average rainfall in June:
1.22"
- Average rainfall in July:
1.06" - Average rainfall in August:
1.57" - Average rainfall in September:
0.59" - Average rainfall in October:
0.55" - Average rainfall in November:
0.35" - Average rainfall in December:
0.31"
The wettest month (with the highest rainfall) is August (1.57").
The driest month (with the least rainfall) is February (0.24").
Average rainfall days
Big Delta, AK
- Average rainfall days in January:
2 days - Average rainfall days in February:
2.3 days - Average rainfall days in March:
3.9 days - Average rainfall days in April:
5.1 days - Average rainfall days in May:
7.4 days - Average rainfall days in June:
10.1 days
- Average rainfall days in July:
11.3 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
8.4 days - Average rainfall days in October:
3.5 days - Average rainfall days in November:
1.7 days - Average rainfall days in December:
2.4 days
The month with the highest number of rainy days is August (12.3 days).
The month with the least rainy days is November (1.7 days).
Average snowfall
Big Delta, AK
- Average snowfall in January:
2.05" - Average snowfall in February:
1.77" - Average snowfall in March:
2.99" - Average snowfall in April:
2.36" - Average snowfall in May:
0.63" - Average snowfall in June:
0"
The months with the highest snowfall are March and October (2.99").
The months with the least snowfall are June and July (0").
Average snowfall days
Big Delta, AK
- Average snowfall days in January:
7.8 days - Average snowfall days in February:
8.7 days - Average snowfall days in March:
8 days - Average snowfall days in April:
5.6 days - Average snowfall days in May:
1.8 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0.2 days - Average snowfall days in September:
1.9 days - Average snowfall days in October:
4.5 days - Average snowfall days in November:
9.6 days - Average snowfall days in December:
8.1 days
The month with the highest number of snowfall days is November (9.6 days).
The months with the least snowfall days are June and July (0 days).
Average daylight / Average sunshine
Big Delta, AK
- Average daylight in January:
5h and 36min - Average daylight in February:
8h and 36min - Average daylight in March:
11h and 54min - Average daylight in April:
15h and 12min - Average daylight in May:
18h and 30min - Average daylight in June:
20h and 54min
- Average daylight in July:
19h and 30min - Average daylight in August:
16h and 18min - Average daylight in September:
13h and 0min - Average daylight in October:
9h and 42min - Average daylight in November:
6h and 30min - Average daylight in December:
4h and 24min
The month with the longest days is June (Average daylight: 20h and 54min).
The month with the shortest days is December (Average daylight: 4h and 24min).
- Average sunshine in January:
3h and 42min - Average sunshine in February:
5h and 0min - Average sunshine in March:
7h and 0min - Average sunshine in April:
8h and 36min - Average sunshine in May:
12h and 36min - Average sunshine in June:
13h and 24min
- Average sunshine in July:
12h and 36min - Average sunshine in August:
10h and 18min - Average sunshine in September:
8h and 24min - Average sunshine in October:
6h and 0min - Average sunshine in November:
4h and 24min - Average sunshine in December:
2h and 18min
The month with the most sunshine is June (Average sunshine: 13h and 24min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).
Average sunshine days
Big Delta, AK
- Average sunshine days in January:
23.5 days - Average sunshine days in February:
20.3 days - Average sunshine days in March:
22.2 days - Average sunshine days in April:
20.4 days - Average sunshine days in May:
21.2 days - Average sunshine days in June:
18.1 days
- Average sunshine days in July:
18.6 days - Average sunshine days in August:
17.4 days - Average sunshine days in September:
18.6 days - Average sunshine days in October:
23.3 days - Average sunshine days in November:
20.6 days - Average sunshine days in December:
23.5 days
The months with the most sunshine days are January and December (23.5 days).
The month with the least sunshine days is August (17.4 days).
Average UV index
Big Delta, AK
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, September, October, November and December (UV index 2).
Average cloud cover
Big Delta, AK
The months with the most cloud cover are March and November (Cloud cover 45).
The month with the least cloud cover is May (Cloud cover 35).
Average visibility
Big Delta, AK
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, November and December (5mi).





