Climate Insights for Littlefork Municipal/Hanover Airport

Walla Walla County, Minnesota, United States

Hottest
July
26°C peak
Coldest
January
-17°C low
Wettest
September
126mm rain
Best to Visit
July, August
Mild temps & low rain

Climate Overview

The climate in Littlefork Municipal/Hanover Airport is cool. The average annual temperature is 4°C and approximately 788mm of precipitation falls per year. Littlefork Municipal/Hanover Airport receives a notable amount of rainfall throughout the year, including during its driest month. Littlefork Municipal/Hanover Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, December, when temperatures can drop to -17°C. Snowfall occurs from January to December, with around 183cm accumulating over the season.

Temperature

-20° -10° 10° 20° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: -8° Average: -13° Min: -17° Feb Max: -5° Average: -11° Min: -16° Mar Max: 3° Average: -3° Min: -8° Apr Max: 10° Average: 4° Min: -2° May Max: 19° Average: 12° Min: 6° Jun Max: 24° Average: 18° Min: 12° Jul Max: 26° Average: 20° Min: 15° Aug Max: 25° Average: 18° Min: 13° Sep Max: 19° Average: 14° Min: 9° Oct Max: 9° Average: 5° Min: 2° Nov Max: 1° Average: -2° Min: -5° Dec Max: -6° Average: -10° Min: -14°
Max
Average
Min

Littlefork Municipal/Hanover Airport has a wide annual temperature range, spanning 43°C from the coldest to warmest months. The warmest month is July, when average highs reach 26°C and the mean temperature sits around 20°C. January brings the harshest conditions, with lows dropping to -17°C and an average temperature of -13°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 9°C shift in average temperatures.

Precipitation

0mm 25mm 50mm 75mm 100mm 125mm 150mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 30mm Snow: 29mm Feb Precipitation: 32mm Snow: 28mm Mar Precipitation: 38mm Snow: 24mm Apr Precipitation: 46mm Snow: 20mm May Precipitation: 56mm Snow: 2mm Jun Precipitation: 117mm Snow: 0mm Jul Precipitation: 80mm Snow: 0mm Aug Precipitation: 99mm Snow: 0mm Sep Precipitation: 126mm Snow: 0mm Oct Precipitation: 83mm Snow: 14mm Nov Precipitation: 35mm Snow: 26mm Dec Precipitation: 45mm Snow: 41mm
Precipitation
Snow

Littlefork Municipal/Hanover Airport is a relatively dry area, receiving approximately 788mm of precipitation annually, which averages out to around 66mm per month. The wettest month is September, averaging 126mm of rainfall. June and August also tend to see above-average precipitation. The driest month is January, with just 30mm. That's 96mm less than September, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 183cm accumulating over the season. December typically sees the most snow at around 41cm.

Wind

0km/h 5km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 3km/h Feb Wind Speed: 3km/h Mar Wind Speed: 3km/h Apr Wind Speed: 3km/h May Wind Speed: 3km/h Jun Wind Speed: 3km/h Jul Wind Speed: 3km/h Aug Wind Speed: 3km/h Sep Wind Speed: 4km/h Oct Wind Speed: 4km/h Nov Wind Speed: 4km/h Dec Wind Speed: 3km/h
Wind Speed

Littlefork Municipal/Hanover Airport is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

83 days until Autumn

It is currently summer in Littlefork Municipal/Hanover Airport, which began on June 21, 2026. Littlefork Municipal/Hanover Airport is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 26°C, while the coldest stretch bottoms out in January near -17°C. Autumn is next, beginning on September 23, 2026 — 83 days from now.

Spring

Temperatures range from -8 to 19°C. Rainfall is relatively light, with around 140mm over the season and a monthly average of 47mm. Winds are generally light, averaging 3km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 12 to 26°C. Precipitation is moderate at around 296mm for the season, averaging 99mm per month. Winds are generally light, averaging 3km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from -5 to 19°C. Precipitation is moderate at around 244mm for the season, averaging 81mm per month. Expect around 40cm of snow accumulation during this period. Winds are generally light, averaging 4km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from -17 to -5°C. Rainfall is relatively light, with around 107mm over the season and a monthly average of 36mm. Expect around 98cm of snow accumulation during this period. Winds are generally light, averaging 3km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.

Best Time to Visit

Jan -13°
Feb -11°
Mar -3°
Apr
May 12°
Jun 18°
Jul 20°
Aug 18°
Sep 14°
Oct
Nov -2°
Dec -10°

The best time to visit Littlefork Municipal/Hanover Airport is during July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 89mm per month. By contrast, January can be quite cold with temperatures dropping to -17°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

Monthly Climate Data

The table below shows monthly climate averages for Littlefork Municipal/Hanover Airport based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
-17 °C
-8 °C
3 km/h
30 mm
29 cm
Feb
-16 °C
-5 °C
3 km/h
32 mm
28 cm
Mar
-8 °C
3 °C
3 km/h
38 mm
24 cm
Apr
-2 °C
10 °C
3 km/h
46 mm
20 cm
May
6 °C
19 °C
3 km/h
56 mm
2 cm
Jun
12 °C
24 °C
3 km/h
117 mm
0 cm
Jul Current
15 °C
26 °C
3 km/h
80 mm
0 cm
Aug
13 °C
25 °C
3 km/h
99 mm
0 cm
Sep
9 °C
19 °C
4 km/h
126 mm
0 cm
Oct
2 °C
9 °C
4 km/h
83 mm
14 cm
Nov
-5 °C
1 °C
4 km/h
35 mm
26 cm
Dec
-14 °C
-6 °C
3 km/h
45 mm
41 cm
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