Climate and monthly weather forecastOrtley, SD
Climate and monthly weather forecast
Weather in January
January, the same as December, in Ortley, South Dakota, is a freezing cold winter month, with an average temperature ranging between max 18.9°F (-7.3°C) and min 5°F (-15°C). The month of January sees the lowest average temperatures, reaching 18.9°F (-7.3°C) at the peak and 5°F (-15°C) at the low. Weather in January »Weather in February
February, the last month of the winter in Ortley, is also a subzero cold month, with an average temperature varying between 21.4°F (-5.9°C) and 7.2°F (-13.8°C). Ortley marks the start of February with an average high-temperature of a still subzero cold 21.4°F (-5.9°C), hinting at a slight fluctuation from January's 18.9°F (-7.3°C). Weather in February »Weather in March
The first month of the spring, March, is a cold month in Ortley, South Dakota, with temperature in the range of an average high of 37.6°F (3.1°C) and an average low of 23.2°F (-4.9°C). Witnessing a clear upsurge, the average high-temperature during March escalates from February's subzero cold 21.4°F (-5.9°C) to a wintry 37.6°F (3.1°C). Weather in March »Weather in April
April in Ortley, South Dakota, is a fresh spring month, with temperature in the range of an average high of 51.1°F (10.6°C) and an average low of 35.1°F (1.7°C). In Ortley, stepping into April brings a temperature increase, moving up from March's wintry 37.6°F (3.1°C) to a cool 51.1°F (10.6°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Ortley, South Dakota, with an average temperature varying between 46.6°F (8.1°C) and 64°F (17.8°C). Ortley sees an increase in the average high-temperature with the arrival of May, moving from April's fresh 51.1°F (10.6°C) to an enjoyable 64°F (17.8°C). Weather in May »Weather in June
June, the first month of the summer in Ortley, is a warm month, with an average temperature varying between 74.3°F (23.5°C) and 56.3°F (13.5°C). The arrival of June brings an increase in high-temperatures, moving from an enjoyable 64°F (17.8°C) in May to a moderately hot 74.3°F (23.5°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Ortley, South Dakota, with an average temperature varying between 61.3°F (16.3°C) and 81°F (27.2°C). The temperatures reach their highest averages in July, with highs of 81°F (27.2°C) and lows of 61.3°F (16.3°C). Throughout July, the heat index is computed to be 84.2°F (29°C). Weather in July »Weather in August
August, the last month of the summer in Ortley, is also a moderately hot month, with an average temperature ranging between min 58.8°F (14.9°C) and max 80.1°F (26.7°C). In August, Ortley's weather conditions record an average high-temperature of a still warm 80.1°F (26.7°C), demonstrating little divergence from the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Ortley, South Dakota, with an average temperature fluctuating between 71.6°F (22°C) and 51.3°F (10.7°C). September's onset brings a negligible change in high-temperatures, falling from a moderately hot 80.1°F (26.7°C) in August to an agreeable 71.6°F (22°C). Weather in September »Weather in October
October, the same as September, is a cool autumn month in Ortley, South Dakota, with an average temperature fluctuating between 53.8°F (12.1°C) and 38.7°F (3.7°C). October's onset is marked by a clear temperature decrease, falling from a pleasant 71.6°F (22°C) in September to a fresh 53.8°F (12.1°C). Weather in October »Weather in November
November, the last month of the autumn in Ortley, is also a wintry month, with an average temperature varying between 25.7°F (-3.5°C) and 38.8°F (3.8°C). The onset of November brings a clear temperature shift, with the average high-temperature decreasing from a fresh 53.8°F (12.1°C) in October to a wintry 38.8°F (3.8°C). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Ortley, South Dakota, with temperature in the range of an average low of 11.5°F (-11.4°C) and an average high of 23.2°F (-4.9°C). A decrease in the average high-temperature marks December, falling from November's wintry 38.8°F (3.8°C) to a subzero cold 23.2°F (-4.9°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
Ortley's coldest month, January, generally records average temperatures ranging from a high of 18.9°F (-7.3°C) to a low of 5°F (-15°C).
January is the most humid month in Ortley, South Dakota, with an average relative humidity of 91%.
Throughout the year, there are 112.9 rainfall days, and 22.09" (561mm) of precipitation is accumulated.
January through May, October through December are months with snowfall in Ortley.
Throughout the year, in Ortley, there are 68.4 snowfall days, and 23.74" (603mm) of snow is accumulated.
The month with the least sunshine is January, with an average of 3.2h of sunshine.
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
In Ortley, South Dakota, snow does not fall in June through September.
The month with the longest days in Ortley, South Dakota, is June, with an average of 15h and 36min of daylight.
The months with the highest UV index in Ortley, South Dakota, are June and July, with an average maximum UV index of 6.
July, with its high-temperature average of 81°F (27.2°C) and a low-temperature average of 61.3°F (16.3°C), is the warmest month in Ortley, South Dakota.
The month with the most rainfall is July, when the rain falls for 14.4 days and typically aggregates up to 3.58" (91mm) of precipitation.
With an average of 10.7h of sunshine, July has the most sunshine of the year in Ortley.
The least humid month is September, with an average relative humidity of 66%.
The month with the least rainfall in Ortley, South Dakota, is November, when the rain falls for 4.6 days and typically collects 0.63" (16mm) of precipitation.
The month with the most snowfall is December, when snow falls for 14.6 days and typically aggregates up to 4.53" (115mm) of snow.
December has the shortest days of the year in Ortley, South Dakota, with an average of 8h and 48min of daylight.
Average temperature
Ortley, SD
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (18.9°F).
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (5°F).
Average pressure
Ortley, SD
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.17"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.85"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed
Ortley, SD
- Average wind speed in January:
11mph - Average wind speed in February:
10.6mph - Average wind speed in March:
11mph - Average wind speed in April:
11.7mph - Average wind speed in May:
10.5mph - Average wind speed in June:
9.6mph
- Average wind speed in July:
8.7mph - Average wind speed in August:
8.8mph - Average wind speed in September:
10.3mph - Average wind speed in October:
11.3mph - Average wind speed in November:
11mph - Average wind speed in December:
11mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is July (8.7mph).
Average humidity
Ortley, SD
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is September (66%).
Average rainfall
Ortley, SD
- Average rainfall in January:
0.71" - Average rainfall in February:
0.71" - Average rainfall in March:
1.26" - Average rainfall in April:
1.93" - Average rainfall in May:
2.72" - Average rainfall in June:
3.46"
- Average rainfall in July:
3.58" - Average rainfall in August:
2.01" - Average rainfall in September:
1.57" - Average rainfall in October:
2.52" - Average rainfall in November:
0.63" - Average rainfall in December:
0.98"
The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is November (0.63").
Average rainfall days
Ortley, SD
- Average rainfall days in January:
2.5 days - Average rainfall days in February:
2.3 days - Average rainfall days in March:
8.1 days - Average rainfall days in April:
11.3 days - Average rainfall days in May:
16.5 days - Average rainfall days in June:
17.9 days
- Average rainfall days in July:
14.4 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
10.1 days - Average rainfall days in October:
8.8 days - Average rainfall days in November:
4.6 days - Average rainfall days in December:
4.1 days
The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (2.3 days).
Average snowfall
Ortley, SD
- Average snowfall in January:
4.45" - Average snowfall in February:
4.29" - Average snowfall in March:
3.19" - Average snowfall in April:
2.64" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is December (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Ortley, SD
- Average snowfall days in January:
15.1 days - Average snowfall days in February:
12.5 days - Average snowfall days in March:
10.4 days - Average snowfall days in April:
5.8 days - Average snowfall days in May:
0.8 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:
2.6 days - Average snowfall days in November:
6.6 days - Average snowfall days in December:
14.6 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Ortley, SD
- Average daylight in January:
9h and 12min - Average daylight in February:
10h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 54min - Average daylight in June:
15h and 36min
- Average daylight in July:
15h and 12min - Average daylight in August:
14h and 0min - 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 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
3h and 12min - Average sunshine in February:
4h and 0min - Average sunshine in March:
5h and 12min - Average sunshine in April:
7h and 18min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 48min
- Average sunshine in July:
10h and 42min - Average sunshine in August:
10h and 18min - Average sunshine in September:
8h and 48min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days
Ortley, SD
- Average sunshine days in January:
14.3 days - Average sunshine days in February:
14.9 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
13 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
10.4 days
- Average sunshine days in July:
13.7 days - Average sunshine days in August:
16.5 days - Average sunshine days in September:
18.5 days - Average sunshine days in October:
17.6 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
15.2 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (10.4 days).
Average UV index
Ortley, SD
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover
Ortley, SD
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility
Ortley, SD
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
