Climate and monthly weather forecastMorristown, SD
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Morristown, South Dakota, with an average temperature varying between 11.7°F (-11.3°C) and 25.2°F (-3.8°C). Morristown records the coldest temperatures in January, averaging a high of 25.2°F (-3.8°C) and a low of 11.7°F (-11.3°C). Weather in January »Weather in February
February, the last month of the winter in Morristown, is also a subzero cold month, with an average temperature ranging between min 13.5°F (-10.3°C) and max 26.8°F (-2.9°C). The arrival of February brings an average high-temperature of a still subzero cold 26.8°F (-2.9°C), subtly diverging from January's 25.2°F (-3.8°C). Weather in February »Weather in March
The first month of the spring, March, is an icy month in Morristown, South Dakota, with an average temperature varying between 26.1°F (-3.3°C) and 41.4°F (5.2°C). March's arrival witnesses a distinct temperature rise, advancing from February's freezing cold 26.8°F (-2.9°C) to a cold 41.4°F (5.2°C). Weather in March »Weather in April
April in Morristown, South Dakota, is a fresh spring month, with temperature in the range of an average low of 35.2°F (1.8°C) and an average high of 52.3°F (11.3°C). Noticing a change, the average high-temperature during April moves from March's icy 41.4°F (5.2°C) to a cool 52.3°F (11.3°C). Weather in April »Weather in May
May, the last month of the spring in Morristown, is an enjoyable month, with an average temperature varying between 46.2°F (7.9°C) and 64.9°F (18.3°C). The average high-temperature increases in May, moving from a fresh 52.3°F (11.3°C) in April to a refreshing 64.9°F (18.3°C). Weather in May »Weather in June
June, the first month of the summer in Morristown, is a warm month, with temperature in the range of an average low of 56.3°F (13.5°C) and an average high of 76.3°F (24.6°C). The transition to June introduces an increase in the average high-temperature, shifting from an enjoyable 64.9°F (18.3°C) in May to a moderately hot 76.3°F (24.6°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Morristown, South Dakota, with an average temperature varying between 63.1°F (17.3°C) and 84.7°F (29.3°C). July, known for its average high temperature of 84.7°F (29.3°C) and an average low temperature of 63.1°F (17.3°C), is the warmest month. July's mean heat index is estimated at a hot 86°F (30°C). Weather in July »Weather in August
August, the last month of the summer in Morristown, is another warm month, with temperature in the range of an average low of 61.9°F (16.6°C) and an average high of 82.6°F (28.1°C). The average high-temperature in August, at a still moderately hot 82.6°F (28.1°C), reveals a modest deviation from July's 84.7°F (29.3°C). Weather in August »Weather in September
September, the first month of the autumn in Morristown, is also an agreeable month, with temperature in the range of an average high of 73°F (22.8°C) and an average low of 54°F (12.2°C). September ushers in a slight temperature change, with average high-temperatures reducing from August's warm 82.6°F (28.1°C) to a pleasant 73°F (22.8°C). Weather in September »Weather in October
October, like September, in Morristown, South Dakota, is another fresh autumn month, with an average temperature ranging between max 54.7°F (12.6°C) and min 39.4°F (4.1°C). The start of October signals a clear decrease in the average high-temperature, falling from a pleasant 73°F (22.8°C) in September to a cool 54.7°F (12.6°C). Weather in October »Weather in November
November, the last month of the autumn in Morristown, is another cold month, with an average temperature varying between 41.2°F (5.1°C) and 27.5°F (-2.5°C). November brings a decrease in the average high-temperature, falling from October's fresh 54.7°F (12.6°C) to a cold 41.2°F (5.1°C). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Morristown, South Dakota, with an average temperature fluctuating between 25.9°F (-3.4°C) and 14.4°F (-9.8°C). December is characterized by a clear drop in the average high-temperature, falling from November's cold 41.2°F (5.1°C) to a subzero cold 25.9°F (-3.4°C). Weather in December »Updated: Feb 14, 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
Morristown records the coldest temperatures in January, averaging a high of 25.2°F (-3.8°C) and a low of 11.7°F (-11.3°C).
January is the most humid month in Morristown, South Dakota, with an average relative humidity of 85%.
January is the month with the least rainfall. Rain falls for 2.9 days and accumulates 0.47" (12mm) of precipitation.
In Morristown, South Dakota, during the entire year, the rain falls for 101.3 days and collects up to 14.25" (362mm) of precipitation.
January through May, October through December are months with snowfall.
In Morristown, during the entire year, snow falls for 65.8 days and aggregates up to 21.42" (544mm) of snow.
January has the least sunshine of the year, with an average of 4.6h of sunshine.
The month with the most snowfall in Morristown, South Dakota, is February, when snow falls for 12.9 days and typically aggregates up to 4.53" (115mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Morristown, 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 month with the most rainfall in Morristown, South Dakota, is June, when the rain falls for 15.1 days and typically aggregates up to 2.28" (58mm) of precipitation.
June through September are months without snowfall.
With an average of 15h and 42min of daylight, June has the longest days of the year in Morristown.
June through August, with an average maximum UV index of 6, are months with the highest UV index in Morristown.
July stands out as Morristown's warmest month, with temperatures ranging between an average high of 84.7°F (29.3°C) and a low of 63.1°F (17.3°C).
August and September, with an average relative humidity of 51%, are the least humid months in Morristown, South Dakota.
The month with the most sunshine in Morristown, South Dakota, is August, with an average of 11.5h of sunshine.
The month with the shortest days in Morristown, South Dakota, is December, with an average of 8h and 42min of daylight.
The month with the lowest UV index is December, with an average maximum UV index of 1.
Average temperature
Morristown, SD
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (25.2°F).
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure
Morristown, SD
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.16"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.84"Hg
- Average pressure in July:
29.9"Hg - Average pressure in August:
29.9"Hg - Average pressure in September:
29.94"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed
Morristown, SD
- Average wind speed in January:
11.4mph - Average wind speed in February:
10.2mph - Average wind speed in March:
10.9mph - Average wind speed in April:
11.7mph - Average wind speed in May:
11mph - Average wind speed in June:
10.5mph
- Average wind speed in July:
9.7mph - Average wind speed in August:
9.6mph - Average wind speed in September:
10.7mph - Average wind speed in October:
11.6mph - Average wind speed in November:
10.9mph - Average wind speed in December:
10.9mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).
Average humidity
Morristown, SD
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are August and September (51%).
Average rainfall
Morristown, SD
- Average rainfall in January:
0.47" - Average rainfall in February:
0.67" - Average rainfall in March:
0.91" - Average rainfall in April:
1.38" - Average rainfall in May:
2.2" - Average rainfall in June:
2.28"
- Average rainfall in July:
1.65" - Average rainfall in August:
1.34" - Average rainfall in September:
1.02" - Average rainfall in October:
1.26" - Average rainfall in November:
0.51" - Average rainfall in December:
0.55"
The wettest month (with the highest rainfall) is June (2.28").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days
Morristown, SD
- Average rainfall days in January:
2.9 days - Average rainfall days in February:
3.3 days - Average rainfall days in March:
6.7 days - Average rainfall days in April:
11.9 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
15.1 days
- Average rainfall days in July:
13.8 days - Average rainfall days in August:
11.3 days - Average rainfall days in September:
7.6 days - Average rainfall days in October:
7.5 days - Average rainfall days in November:
3.7 days - Average rainfall days in December:
3.7 days
The month with the highest number of rainy days is June (15.1 days).
The month with the least rainy days is January (2.9 days).
Average snowfall
Morristown, SD
- Average snowfall in January:
2.95" - Average snowfall in February:
4.53" - Average snowfall in March:
3.03" - Average snowfall in April:
3.15" - Average snowfall in May:
1.34" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Morristown, SD
- Average snowfall days in January:
12.8 days - Average snowfall days in February:
12.9 days - Average snowfall days in March:
9.8 days - Average snowfall days in April:
5.8 days - Average snowfall days in May:
1.4 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 days - Average snowfall days in October:
3.2 days - Average snowfall days in November:
7.4 days - Average snowfall days in December:
12.5 days
The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Morristown, SD
- Average daylight in January:
9h and 6min - Average daylight in February:
10h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
15h and 0min - Average daylight in June:
15h and 42min
- Average daylight in July:
15h and 18min - Average daylight in August:
14h and 6min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 30min - Average daylight in December:
8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January:
4h and 36min - Average sunshine in February:
4h and 42min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 30min - Average sunshine in May:
9h and 36min - Average sunshine in June:
10h and 42min
- Average sunshine in July:
11h and 24min - Average sunshine in August:
11h and 30min - Average sunshine in September:
9h and 42min - Average sunshine in October:
6h and 36min - Average sunshine in November:
5h and 48min - Average sunshine in December:
4h and 48min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days
Morristown, SD
- Average sunshine days in January:
16.5 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
12.3 days - Average sunshine days in May:
13.7 days - Average sunshine days in June:
11.7 days
- Average sunshine days in July:
13.6 days - Average sunshine days in August:
16.3 days - Average sunshine days in September:
19.2 days - Average sunshine days in October:
19.2 days - Average sunshine days in November:
19.7 days - Average sunshine days in December:
16.9 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.7 days).
Average UV index
Morristown, SD
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Morristown, SD
The months with the most cloud cover are January and February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility
Morristown, SD
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).
