February weather forecast
Lewistown, MT

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Weather in February

February infers a continuation of winter's reign with the mercury dipping to 15.3°F (-9.3°C), the lowest of the year, capped at 29.1°F (-1.6°C) causing a chillier environment than in previous January. Notable conditions include an increase in snowfall to 6.65" (169mm), emphasizing the persistent winter chills. The blend of lower atmospheric pressure coupled with gusty wind speeds often brings snowflakes dancing in the wind. Though grayer, the extra daylight and sunshine hours hint at the approach of spring; the winter weather yet reigns supreme.

Temperature

The coldest period falls in February and December, when the average high-temperature reaches 29.1°F (-1.6°C).

Humidity

The most humid month is February, with an average relative humidity of 79%.

Rainfall

In Lewistown, in February, during 6.9 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. In Lewistown, during the entire year, the rain falls for 126.2 days and collects up to 17.83" (453mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall. In February, it is snowing for 15.2 days. Throughout February, 6.65" (169mm) of snow is accumulated. In Lewistown, during the entire year, snow falls for 83.4 days and aggregates up to 45.51" (1156mm) of snow.

Daylight

The average length of the day in February is 10h and 19min.
On the first day of February, sunrise is at 7:42 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:02 pm MST.

Sunshine

With an average of 5.5h of sunshine, February has the least sunshine of the year.

UV index

The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 2 in February translates into this advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

During February and December, Lewistown experiences its lowest temperatures, averaging a high-temperature of 29.1°F (-1.6°C).

How cold is it in February?

Lewistown in February has an average high-temperature of 29.1°F (-1.6°C) and an average low-temperature of 15.3°F (-9.3°C).

What is the most humid month?

With an average relative humidity of 79%, February is the most humid month.

What is the average humidity in February?

In February, the average relative humidity is 79%.

How much does it rain in February?

In Lewistown, in February, it is raining for 6.9 days, with typically 0.98" (25mm) of accumulated precipitation.

How many days does it snow in February?

In Lewistown, in February, snow falls for 15.2 days, with typically accumulated 6.65" (169mm) of snow.

What is the average length of the day in February?

In Lewistown, the average day length in February is 10h and 19min.

When is the sunrise / sunset in February?

In February, on the first day of the month, sunrise is at 7:42 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:02 pm MST.

What is the month with the least sunshine?

February has the least sunshine of the year, with an average of 5.5h of sunshine.

How long on average sun shines in February?

The average sunshine duration in February is 5.5h.

What are the months with the lowest UV index?

The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2.

What is the UV index intensity in February?

In February, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in February
Lewistown, MT

Average temperature in February - Lewistown, MT
  • Average high temperature in February: 29.1°F

The warmest month (with the highest average high temperature) is July (78.8°F).
The months with the lowest average high temperature are February and December (29.1°F).

  • Average low temperature in February: 15.3°F

The month with the highest average low temperature is August (54.5°F).
The coldest month (with the lowest average low temperature) is February (15.3°F).

Average pressure in February
Lewistown, MT

Average pressure in February - Lewistown, MT
  • Average pressure in February: 30.11"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in February
Lewistown, MT

Average wind speed in February - Lewistown, MT
  • Average wind speed in February: 9.1mph

The windiest months (with the highest average wind speed) are January, April and October (9.9mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).

Average humidity in February
Lewistown, MT

Average humidity in February - Lewistown, MT
  • Average humidity in February: 79%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (47%).

Average rainfall in February
Lewistown, MT

Average rainfall in February - Lewistown, MT
  • Average rainfall in February: 0.98"

The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is December (0.71").

Average rainfall days in February
Lewistown, MT

Average rainfall days in February - Lewistown, MT
  • Average rainfall days in February: 6.9 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (5.4 days).

Average snowfall in February
Lewistown, MT

Average snowfall in February - Lewistown, MT
  • Average snowfall in February: 6.65"

The month with the highest snowfall is April (9.13").
The months with the least snowfall are July and August (0").

Average snowfall days in February
Lewistown, MT

Average snowfall days in February - Lewistown, MT
  • Average snowfall days in February: 15.2 days

The month with the highest number of snowfall days is February (15.2 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in February /
Average sunshine in February
Lewistown, MT

Average daylight in February / Average sunshine in February - Lewistown, MT
  • Average daylight in February: 10h and 2min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in February: 5h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).

Average sunshine days in February
Lewistown, MT

Average sunshine days in February - Lewistown, MT
  • Average sunshine days in February: 11.8 days

The month with the most sunshine days is September (19.3 days).
The month with the least sunshine days is April (8.3 days).

Average UV index in February
Lewistown, MT

Average UV index in February - Lewistown, MT
  • Average UV index in February: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

Average cloud cover in February
Lewistown, MT

Average cloud cover in February - Lewistown, MT
  • Average cloud cover in February: 45

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 16).

Average visibility in February
Lewistown, MT

Average visibility in February - Lewistown, MT
  • Average visibility in February: 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).

Lewistown, Montana, USA

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