Climate and monthly weather forecastHays, MT
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Hays, Montana, with an average temperature ranging between max 25.7°F (-3.5°C) and min 11.8°F (-11.2°C). The coldest months are January and February, with an average high-temperature of 25.7°F (-3.5°C). Weather in January »Weather in February
February, the last month of the winter in Hays, is another freezing cold month, with an average temperature fluctuating between 12°F (-11.1°C) and 25.7°F (-3.5°C). The months of January and February see the lowest levels of Hays's temperatures, averaging a high of 25.7°F (-3.5°C). Weather in February »Weather in March
March, the first month of the spring in Hays, is an icy month, with an average temperature fluctuating between 24.4°F (-4.2°C) and 38.8°F (3.8°C). The onset of March marks an increase in the average high-temperature, moving from a freezing cold 25.7°F (-3.5°C) in February to a wintry 38.8°F (3.8°C). Weather in March »Weather in April
April in Hays, Montana, is a cool spring month, with an average temperature varying between 36.3°F (2.4°C) and 52.9°F (11.6°C). Hays sees a rise in temperature during April, with average high-temperatures transitioning from a wintry 38.8°F (3.8°C) in March to a cool 52.9°F (11.6°C). Weather in April »Weather in May
May, the last month of the spring in Hays, is an enjoyable month, with an average temperature ranging between max 64.9°F (18.3°C) and min 46.4°F (8°C). Hays in May sees a temperature change, with average high-temperatures moving from a cool 52.9°F (11.6°C) in April to a comfortable 64.9°F (18.3°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Hays, Montana, with an average temperature varying between 74.5°F (23.6°C) and 54.7°F (12.6°C). Hays's transition into June is marked by a rise in the average high-temperature, advancing from a refreshing 64.9°F (18.3°C) in May to a warm 74.5°F (23.6°C). Weather in June »Weather in July
July, like June, in Hays, Montana, is another warm summer month, with an average temperature ranging between min 62.4°F (16.9°C) and max 83.5°F (28.6°C). July, with its average high-temperature of 83.5°F (28.6°C) and an average low-temperature of 62.4°F (16.9°C), holds the record as the warmest month. For most parts of July, the heat index is estimated at 84.2°F (29°C). Weather in July »Weather in August
August, the last month of the summer in Hays, is another warm month, with an average temperature varying between 62.2°F (16.8°C) and 82.2°F (27.9°C). Hays's weather in August indicates an average high-temperature of a still moderately hot 82.2°F (27.9°C), nearly consistent with the 83.5°F (28.6°C) of July. Weather in August »Weather in September
September, the first month of the autumn in Hays, is still a pleasant month, with an average temperature fluctuating between 53.4°F (11.9°C) and 70.9°F (21.6°C). The arrival of September indicates a decrease in the average high-temperature, moving from a warm 82.2°F (27.9°C) in August to an agreeable 70.9°F (21.6°C). Weather in September »Weather in October
October, the same as September, is a cool autumn month in Hays, Montana, with temperature in the range of an average low of 39.4°F (4.1°C) and an average high of 54.3°F (12.4°C). In Hays, stepping into October signifies a significant temperature decrement, moving down from September's agreeable 70.9°F (21.6°C) to a fresh 54.3°F (12.4°C). Weather in October »Weather in November
November, the last month of the autumn in Hays, is also an icy month, with temperature in the range of an average low of 26.4°F (-3.1°C) and an average high of 39.6°F (4.2°C). The onset of November brings a clear temperature shift, with the average high-temperature decreasing from a cool 54.3°F (12.4°C) in October to an icy 39.6°F (4.2°C). Weather in November »Weather in December
December, the first month of the winter in Hays, is still a freezing cold month, with temperature in the range of an average high of 25.9°F (-3.4°C) and an average low of 13.8°F (-10.1°C). Onset of December comes with a temperature decline, the average high falling from an icy 39.6°F (4.2°C) in November to a freezing cold 25.9°F (-3.4°C). Weather in December »Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
During January and February, Hays experiences its lowest temperatures, averaging a high-temperature of 25.7°F (-3.5°C).
The most humid month is January, with an average relative humidity of 84%.
In Hays, during the entire year, the rain falls for 103.3 days and collects up to 11.81" (300mm) of precipitation.
Months with snowfall in Hays are January through May, September through December.
In Hays, Montana, during the entire year, snow falls for 59.6 days and aggregates up to 20.28" (515mm) of snow.
February and December are months with the least rain when the rain falls for 4.2 days and typically aggregates up to 0.55" (14mm) of rain.
The month with the least sunshine in Hays is February, with an average of 4.8h of sunshine.
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.
The months with the most rainfall in Hays, Montana, are May and June, with an average 1.89" (48mm) of precipitation.
In Hays, snow does not fall in June through August.
With an average of 16h and 0min of daylight, June has the longest days of the year.
July is the month when Hays sees the average highest temperatures, with a high of 83.5°F (28.6°C) and a low of 62.4°F (16.9°C).
July has the most sunshine of the year in Hays, with an average of 11.8h of sunshine.
With an average maximum UV index of 7, July is the month with the highest UV index.
The least humid month is August, with an average relative humidity of 41%.
The month with the most snowfall is December, when snow falls for 12.7 days and typically aggregates up to 3.9" (99mm) of snow.
With an average of 8h and 30min of daylight, December has the shortest days of the year.
December is the month with the lowest UV index, with an average maximum UV index of 1.
Average temperature
Hays, MT
The warmest month (with the highest average high temperature) is July (83.5°F).
The months with the lowest average high temperature are January and February (25.7°F).
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (11.8°F).
Average pressure
Hays, MT
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.83"Hg
- Average pressure in July:
29.88"Hg - Average pressure in August:
29.88"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
29.97"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed
Hays, MT
- Average wind speed in January:
9.7mph - Average wind speed in February:
8.8mph - Average wind speed in March:
9.6mph - Average wind speed in April:
11.2mph - Average wind speed in May:
10.5mph - Average wind speed in June:
10.4mph
- Average wind speed in July:
9.6mph - Average wind speed in August:
9.4mph - Average wind speed in September:
9.9mph - Average wind speed in October:
10.7mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.1mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is February (8.8mph).
Average humidity
Hays, MT
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (41%).
Average rainfall
Hays, MT
- Average rainfall in January:
0.59" - Average rainfall in February:
0.55" - Average rainfall in March:
0.67" - Average rainfall in April:
1.1" - Average rainfall in May:
1.89" - Average rainfall in June:
1.89"
- Average rainfall in July:
0.98" - Average rainfall in August:
0.94" - Average rainfall in September:
1.1" - Average rainfall in October:
0.87" - Average rainfall in November:
0.67" - Average rainfall in December:
0.55"
The wettest months (with the highest rainfall) are May and June (1.89").
The driest months (with the least rainfall) are February and December (0.55").
Average rainfall days
Hays, MT
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
4.2 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
12.3 days - Average rainfall days in May:
14.1 days - Average rainfall days in June:
13.2 days
- Average rainfall days in July:
9.5 days - Average rainfall days in August:
9.3 days - Average rainfall days in September:
8.7 days - Average rainfall days in October:
8.4 days - Average rainfall days in November:
5.5 days - Average rainfall days in December:
4 days
The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is December (4 days).
Average snowfall
Hays, MT
- Average snowfall in January:
3.54" - Average snowfall in February:
3.39" - Average snowfall in March:
2.4" - Average snowfall in April:
1.69" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is December (3.9").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Hays, MT
- Average snowfall days in January:
12.5 days - Average snowfall days in February:
12 days - Average snowfall days in March:
8.6 days - Average snowfall days in April:
4.3 days - Average snowfall days in May:
0.3 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.2 days - Average snowfall days in October:
2.5 days - Average snowfall days in November:
6.5 days - Average snowfall days in December:
12.7 days
The month with the highest number of snowfall days is December (12.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Hays, MT
- Average daylight in January:
8h and 54min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 12min - Average daylight in June:
16h and 0min
- Average daylight in July:
15h and 36min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 18min - Average daylight in December:
8h and 30min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in January:
5h and 0min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 48min - Average sunshine in April:
9h and 0min - Average sunshine in May:
10h and 12min - Average sunshine in June:
11h and 24min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 36min - Average sunshine in September:
9h and 54min - Average sunshine in October:
6h and 24min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Hays, MT
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
14.8 days - Average sunshine days in June:
14.4 days
- Average sunshine days in July:
18.5 days - Average sunshine days in August:
18.5 days - Average sunshine days in September:
19.6 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
19.1 days - Average sunshine days in December:
16.7 days
The month with the most sunshine days is September (19.6 days).
The month with the least sunshine days is April (13.4 days).
Average UV index
Hays, MT
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Hays, MT
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility
Hays, MT
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
