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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is a freezing cold winter month in Riverside, Montana, with an average temperature varying between 6.1°F (-14.4°C) and 21.9°F (-5.6°C). January notes an average high-temperature of a still freezing cold 21.9°F (-5.6°C), subtly differing from December's 20.1°F (-6.6°C). Weather in January »
Weather in February
February, the last month of the winter in Riverside, is another freezing cold month, with an average temperature ranging between min 7.2°F (-13.8°C) and max 23°F (-5°C). With the advent of February, Riverside's high-temperatures adjust to a still freezing cold 23°F (-5°C), closely aligning with the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Riverside, is also a subzero cold month, with an average temperature fluctuating between 30°F (-1.1°C) and 14.4°F (-9.8°C). Riverside's transition into March is marked by a minor temperature shift, moving from 23°F (-5°C) in February to a still subzero cold 30°F (-1.1°C). Weather in March »
Weather in April
April is a wintry spring month in Riverside, Montana, with temperature in the range of an average high of 37.2°F (2.9°C) and an average low of 19.6°F (-6.9°C). A slight uplift in the average high-temperature marks April, adjusting from March's subzero cold 30°F (-1.1°C) to a wintry 37.2°F (2.9°C). Weather in April »
Weather in May
May, the last month of the spring in Riverside, is a chilly month, with temperature in the range of an average high of 49.8°F (9.9°C) and an average low of 28.9°F (-1.7°C). As May arrives, a rise in the average high-temperature is observed, moving from an icy 37.2°F (2.9°C) in April to a chilly 49.8°F (9.9°C). Weather in May »
Weather in June
June, the first month of the summer in Riverside, is a comfortable month, with temperature in the range of an average low of 37°F (2.8°C) and an average high of 61.9°F (16.6°C). The start of June signals an increase in the average high-temperature, moving from a frosty 49.8°F (9.9°C) in May to a refreshing 61.9°F (16.6°C). Weather in June »
Weather in July
July is a pleasant summer month in Riverside, Montana, with an average temperature ranging between max 72.9°F (22.7°C) and min 43.5°F (6.4°C). Riverside, Montana, notes the warmest temperatures in July, with a high average of 72.9°F (22.7°C) and a low of 43.5°F (6.4°C). Weather in July »
Weather in August
The last month of the summer, August, is another pleasant month in Riverside, Montana, with an average temperature varying between 43.7°F (6.5°C) and 71.4°F (21.9°C). The advent of August reveals an average high-temperature of a still pleasant 71.4°F (21.9°C), showing minimal difference from the prior month. Weather in August »
Weather in September
September, the first month of the autumn in Riverside, is still a comfortable month, with an average temperature ranging between min 37.6°F (3.1°C) and max 61.9°F (16.6°C). September shows a mild decline in the average high-temperature, falling from August's agreeable 71.4°F (21.9°C) to a comfortable 61.9°F (16.6°C). Weather in September »
Weather in October
October, the same as September, in Riverside, Montana, is a frosty autumn month, with an average temperature ranging between min 26.1°F (-3.3°C) and max 44.2°F (6.8°C). October is characterized by a noticeable reduction in the average high-temperature, falling from a comfortable 61.9°F (16.6°C) in September to a frosty 44.2°F (6.8°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a subzero cold month in Riverside, Montana, with an average temperature varying between 14.2°F (-9.9°C) and 29.7°F (-1.3°C). The transition from October to November brings a clear temperature drop, with average high-temperatures decreasing from a frosty 44.2°F (6.8°C) to a freezing cold 29.7°F (-1.3°C). Weather in November »
Weather in December
December, the first month of the winter in Riverside, is still a freezing cold month, with temperature in the range of an average low of 4.8°F (-15.1°C) and an average high of 20.1°F (-6.6°C). December is the month that records the lowest temperatures, with averages ranging from a high of 20.1°F (-6.6°C) to a low of 4.8°F (-15.1°C). Weather in December »
[Resources]Frequently asked questions
How many days does it rain in Riverside?
In Riverside, during the entire year, the rain falls for 109.2 days and collects up to 23.15" (588mm) of precipitation.
When does it snow in Riverside?
January through July, September through December are months with snowfall.
How many days does it snow in Riverside?
Throughout the year, there are 159.3 snowfall days, and 120.47" (3060mm) of snow is accumulated.
What are the months with the least sunshine in Riverside?
January, February and December, with an average of 3.3h of sunshine, are months with the least sunshine.
What are the months with the lowest UV index in Riverside?
January through April, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Riverside, Montana.
What is the most humid month in Riverside?
The most humid month is February, with an average relative humidity of 95%.
When does it snow the most in Riverside?
February is the month with the most snowfall in Riverside. Snow falls for 23.2 days and accumulates 17.83" (453mm) of snow.
When is Daylight Saving Time (DST) in Riverside?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.
What is the rainiest month in Riverside?
May is the month with the most rainfall in Riverside. Rain falls for 17.4 days and accumulates 2.8" (71mm) of precipitation.
When are the longest days in Riverside?
The month with the longest days in Riverside, Montana, is June, with an average of 15h and 30min of daylight.
What are the warmest months in Riverside?
Riverside witnesses the warmest weather in July, with temperatures averaging a high of 72.9°F (22.7°C) and a low of 43.5°F (6.4°C).
What is the driest month in Riverside?
The month with the least rainfall in Riverside, Montana, is July, when the rain falls for 11.9 days and typically collects 0.91" (23mm) of precipitation.
What month has the most sunshine in Riverside?
The month with the most sunshine in Riverside, Montana, is July, with an average of 11.8h of sunshine.
What is the month with the highest UV index in Riverside?
July is the month with the highest UV index in Riverside, Montana, with an average maximum UV index of 5.
What is the least humid month in Riverside?
August is the least humid month in Riverside, Montana, with an average relative humidity of 50%.
When it does not snow in Riverside?
The only month without snowfall in Riverside, Montana, is August.
What part of the year is the coldest in Riverside?
December, characterized by an average high temperature of 20.1°F (-6.6°C) and a low temperature of 4.8°F (-15.1°C), is generally the coldest month.
What is the month with the shortest days in Riverside?
The month with the shortest days in Riverside is December, with an average of 8h and 54min of daylight.
Average temperature
Riverside, MT
The warmest month (with the highest average high temperature) is July (72.9°F).
The month with the lowest average high temperature is December (20.1°F).
The month with the highest average low temperature is August (43.7°F).
The coldest month (with the lowest average low temperature) is December (4.8°F).
Average pressure
Riverside, MT
- Average pressure in January:
30.24"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.23"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Riverside, MT
- Average wind speed in January:
6.2mph - Average wind speed in February:
6.7mph - Average wind speed in March:
6.5mph - Average wind speed in April:
6.2mph - Average wind speed in May:
6mph - Average wind speed in June:
6.8mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6mph - Average wind speed in October:
6mph - Average wind speed in November:
6.2mph - Average wind speed in December:
6.2mph
The windiest month (with the highest average wind speed) is June (6.8mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity
Riverside, MT
The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is August (50%).
Average rainfall
Riverside, MT
- Average rainfall in January:
2.09" - Average rainfall in February:
2.44" - Average rainfall in March:
2.28" - Average rainfall in April:
2.6" - Average rainfall in May:
2.8" - Average rainfall in June:
2.2"
- Average rainfall in July:
0.91" - Average rainfall in August:
1.18" - Average rainfall in September:
1.57" - Average rainfall in October:
1.46" - Average rainfall in November:
1.65" - Average rainfall in December:
1.97"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is July (0.91").
Average rainfall days
Riverside, MT
- Average rainfall days in January:
2.2 days - Average rainfall days in February:
3.6 days - Average rainfall days in March:
6.6 days - Average rainfall days in April:
9.8 days - Average rainfall days in May:
17.4 days - Average rainfall days in June:
16.9 days
- Average rainfall days in July:
11.9 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
9 days - Average rainfall days in November:
5 days - Average rainfall days in December:
4 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (2.2 days).
Average snowfall
Riverside, MT
- Average snowfall in January:
17.36" - Average snowfall in February:
17.83" - Average snowfall in March:
17.64" - Average snowfall in April:
17.05" - Average snowfall in May:
8.23" - Average snowfall in June:
1.69"
- Average snowfall in July:
0.08" - Average snowfall in August:
0" - Average snowfall in September:
3.27" - Average snowfall in October:
7.32" - Average snowfall in November:
13.62" - Average snowfall in December:
16.38"
The month with the highest snowfall is February (17.83").
The month with the least snowfall is August (0").
Average snowfall days
Riverside, MT
- Average snowfall days in January:
22.8 days - Average snowfall days in February:
23.2 days - Average snowfall days in March:
24.4 days - Average snowfall days in April:
19.9 days - Average snowfall days in May:
10.3 days - Average snowfall days in June:
2.7 days
- Average snowfall days in July:
0.2 days - Average snowfall days in August:
0.2 days - Average snowfall days in September:
2.4 days - Average snowfall days in October:
10.7 days - Average snowfall days in November:
19 days - Average snowfall days in December:
23.5 days
The month with the highest number of snowfall days is March (24.4 days).
The months with the least snowfall days are July and August (0.2 days).
Average daylight / Average sunshine
Riverside, MT
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 3min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 3min
- Average daylight in July:
15h and 1min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
3h and 2min - Average sunshine in February:
3h and 2min - Average sunshine in March:
4h and 4min - Average sunshine in April:
7h and 1min - Average sunshine in May:
9h and 4min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
11h and 5min - Average sunshine in August:
11h and 3min - Average sunshine in September:
9h and 5min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 18min).
Average sunshine days
Riverside, MT
- Average sunshine days in January:
8.6 days - Average sunshine days in February:
5.3 days - Average sunshine days in March:
6 days - Average sunshine days in April:
5.5 days - Average sunshine days in May:
5.5 days - Average sunshine days in June:
8.3 days
- Average sunshine days in July:
14.7 days - Average sunshine days in August:
13.9 days - Average sunshine days in September:
14.7 days - Average sunshine days in October:
14.5 days - Average sunshine days in November:
10.9 days - Average sunshine days in December:
8.2 days
The months with the most sunshine days are July and September (14.7 days).
The month with the least sunshine days is February (5.3 days).
Average UV index
Riverside, MT
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).
Average cloud cover
Riverside, MT
The month with the most cloud cover is February (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 16).
Average visibility
Riverside, MT
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February, March and December (3mi).
Riverside, Montana, USA
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