Climate Insights for Eureka Airport

Pierce County, Montana, United States

Hottest
July
26°C peak
Coldest
February
-10°C low
Wettest
December
69mm rain
Best to Visit
July, August
Mild temps & low rain

Climate Overview

The climate in Eureka Airport is cool. The average annual temperature is 5°C and approximately 634mm of precipitation falls per year. December is the wettest month, receiving around 69mm of rainfall. Eureka 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 February, January, December, when temperatures can drop to -10°C. Eureka Airport experiences heavy snowfall, typically from January through December.

Temperature

-10° 10° 20° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: -2° Average: -6° Min: -9° Feb Max: -2° Average: -6° Min: -10° Mar Max: 4° Average: -1° Min: -5° Apr Max: 10° Average: 4° Min: -1° May Max: 16° Average: 10° Min: 4° Jun Max: 21° Average: 14° Min: 8° Jul Max: 26° Average: 18° Min: 10° Aug Max: 26° Average: 17° Min: 10° Sep Max: 19° Average: 12° Min: 6° Oct Max: 10° Average: 5° Min: 1° Nov Max: 2° Average: -1° Min: -4° Dec Max: -2° Average: -5° Min: -8°
Max
Average
Min

Eureka Airport has a wide annual temperature range, spanning 36°C from the coldest to warmest months. The warmest month is July, when average highs reach 26°C and the mean temperature sits around 18°C. The coldest month is February, when overnight lows fall to -10°C and the daily average is -6°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 7°C shift in average temperatures.

Precipitation

0mm 25mm 50mm 75mm 100mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 50mm Snow: 36mm Feb Precipitation: 55mm Snow: 36mm Mar Precipitation: 56mm Snow: 28mm Apr Precipitation: 55mm Snow: 17mm May Precipitation: 66mm Snow: 4mm Jun Precipitation: 62mm Snow: 1mm Jul Precipitation: 26mm Snow: 0mm Aug Precipitation: 33mm Snow: 0mm Sep Precipitation: 36mm Snow: 2mm Oct Precipitation: 60mm Snow: 11mm Nov Precipitation: 67mm Snow: 34mm Dec Precipitation: 69mm Snow: 44mm
Precipitation
Snow

Eureka Airport is a relatively dry area, receiving approximately 634mm of precipitation annually, which averages out to around 53mm per month. The wettest month is December, averaging 69mm of rainfall. November and May also tend to see above-average precipitation. The driest month is July, with just 26mm. That's 44mm less than December, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall. Eureka Airport receives heavy snowfall, accumulating around 213cm annually from January through December. The snowiest month is December, with approximately 44cm. Winter travel should account for significant snow cover.

Wind

0km/h 5km/h 10km/h 15km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 8km/h Feb Wind Speed: 10km/h Mar Wind Speed: 12km/h Apr Wind Speed: 13km/h May Wind Speed: 12km/h Jun Wind Speed: 12km/h Jul Wind Speed: 12km/h Aug Wind Speed: 12km/h Sep Wind Speed: 12km/h Oct Wind Speed: 10km/h Nov Wind Speed: 9km/h Dec Wind Speed: 8km/h
Wind Speed

Eureka Airport is relatively calm, with an average annual wind speed of 11km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 9km/h in winter, 12km/h in spring, 12km/h in summer, 10km/h in autumn.

Seasons

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

86 days until Summer

It is currently spring in Eureka Airport, which began on March 20, 2026. Eureka 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 February near -10°C. Summer is next, beginning on June 21, 2026 — 86 days from now.

Spring

Temperatures range from -5 to 16°C. Precipitation is moderate at around 176mm for the season, averaging 59mm per month. Winds are generally light, averaging 12km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 8 to 26°C. Rainfall is relatively light, with around 121mm over the season and a monthly average of 40mm. Winds are generally light, averaging 12km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from -4 to 19°C. Precipitation is moderate at around 163mm for the season, averaging 54mm per month. Expect around 47cm of snow accumulation during this period. Winds are generally light, averaging 10km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from -10 to -2°C. Precipitation is moderate at around 175mm for the season, averaging 58mm per month. Expect around 117cm of snow accumulation during this period. Winds are generally light, averaging 9km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.

Best Time to Visit

Jan -6°
Feb -6°
Mar -1°
Apr
May 10°
Jun 14°
Jul 18°
Aug 17°
Sep 12°
Oct
Nov -1°
Dec -5°

The best time to visit Eureka Airport is during July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 30mm per month. By contrast, February can be quite cold with temperatures dropping to -10°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

Monthly Climate Data

The table below shows monthly climate averages for Eureka 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
-9 °C
-2 °C
8 km/h
50 mm
36 cm
Feb
-10 °C
-2 °C
10 km/h
55 mm
36 cm
Mar Current
-5 °C
4 °C
12 km/h
56 mm
28 cm
Apr
-1 °C
10 °C
13 km/h
55 mm
17 cm
May
4 °C
16 °C
12 km/h
66 mm
4 cm
Jun
8 °C
21 °C
12 km/h
62 mm
1 cm
Jul
10 °C
26 °C
12 km/h
26 mm
0 cm
Aug
10 °C
26 °C
12 km/h
33 mm
0 cm
Sep
6 °C
19 °C
12 km/h
36 mm
2 cm
Oct
1 °C
10 °C
10 km/h
60 mm
11 cm
Nov
-4 °C
2 °C
9 km/h
67 mm
34 cm
Dec
-8 °C
-2 °C
8 km/h
69 mm
44 cm
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