The climate of Helena (Montana
- United States of America)
Helena is the capital of Montana which is a state in the northern part
of the United States. The city used to be called Crabtown. However,
this was soon changed into Saint Helena. The addition Saint
disappeared over the years. Helena was founded when gold was found
here and many gold diggers traveled here. Helena has a cold steppe
climate type BSk according to the Köppen climate classification.
Winters are long and cold. Snowfall is not uncommon during the winter.
In total Helena gets about 1 meter of annual snow. The first
snowflakes fall in October or even September. Summers are warm, during
the warmest months July and August average temperatures are 28 degrees
Celsius (82 degrees Fahrenheit). However, temperatures of more than 35
degrees Celsius (95 degrees Fahrenheit) have been recorded as well.
Despite warm days muggy nights are uncommon. As soon as the sun sets
temperatures rapidly drop, even during the summer.
Climate information
The figures below are based on long term weather and climate records.
They are an average for Helena:
average maximum
temperature (°C)
average
minimum
temperature (°C)
average
hours of sunshine
per day
average days with
precipitation
per month
average
mm precipitation
per month
average
sea
temperature (°C)
January
-1
-13
4
10
n/a
February
3
-10
5
8
n/a
March
6
-6
7
10
n/a
April
12
-2
8
9
n/a
May
18
3
9
11
n/a
June
23
8
10
10
n/a
July
28
10
12
7
n/a
August
28
10
10
8
n/a
September
20
4
8
7
n/a
October
14
-1
7
6
n/a
November
6
-7
4
8
n/a
December
0
-12
3
9
n/a
= 0-5 mm ●
= 6-30 mm ●
= 31-60 mm ●
= 61-100 mm ●
= 101-200 mm ●
=
over 200 mm = 0-0.2 inches ● = 0.2-1.2 inches ● = 1.2-2.4 inches ● = 2.5-4 inches ● = 4.1-8 inches ● = over 8 inches
More climate information
Climate figures are very useful but don’t present a general impression
of the climate and the eventual weather circumstances within a certain
period. The figures don’t always reflect the chance of wintry weather,
extreme heat or hurricanes. That is why we offer useful extra climate
information for each month of the year:
Disclaimer
The information at this site was carefully composed from climate data collected by meteorological services, meteorological offices, climate experts and other sources. “More climate info” is based on statistics, climate data and personal experience. No rights can be derived from this site. Weather has no memory and gives no guaranties. Nothing is as changeable and unpredictable as the weather. The authors of this site feel in no way responsible for any damages caused by misinterpretation or other circumstances that may influence your holiday or trip to a certain destination. We provide information, it’s up to the reader to use it to it’s benefit.
this site in Dutch
= 0-5 mm ●
= 6-30 mm ●
= 31-60 mm ●
= 61-100 mm ●
= 101-200 mm ●
=
over 200 mm
= 0-0.2 inches ● 
= 0.2-1.2 inches ● 
= 1.2-2.4 inches ● 
= 2.5-4 inches ● 
= 4.1-8 inches ● 
= over 8 inches
