Climate and monthly weather forecastArch, OK
Climate and monthly weather forecast
Weather in January
January, the same as December, in Arch, Oklahoma, is another chilly winter month, with temperature in the range of an average high of 48.7°F (9.3°C) and an average low of 32.9°F (0.5°C). January, characterized by an average high temperature of 48.7°F (9.3°C) and a low temperature of 32.9°F (0.5°C), is generally the coldest month. Weather in January »Weather in February
February, the last month of the winter in Arch, is a fresh month, with an average temperature fluctuating between 36.7°F (2.6°C) and 52.5°F (11.4°C). With the advent of February, Arch's high-temperatures adjust to a fresh 52.5°F (11.4°C), closely aligning with the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a refreshing month in Arch, Oklahoma, with an average temperature fluctuating between 62.2°F (16.8°C) and 45.1°F (7.3°C). With the onset of March, Arch sees a temperature rise, with the average high-temperature moving from February's cool 52.5°F (11.4°C) to an enjoyable 62.2°F (16.8°C). Weather in March »Weather in April
April in Arch, Oklahoma, is a pleasant spring month, with an average temperature varying between 71.1°F (21.7°C) and 51.4°F (10.8°C). April sees a marginal temperature increase, moving from a refreshing 62.2°F (16.8°C) in March to an agreeable 71.1°F (21.7°C). Weather in April »Weather in May
May, the last month of the spring in Arch, is a warm month, with an average temperature fluctuating between 59.5°F (15.3°C) and 78.1°F (25.6°C). May brings a slight increase in the average high-temperature, progressing from a pleasant 71.1°F (21.7°C) in April to a warm 78.1°F (25.6°C). Weather in May »Weather in June
The first month of the summer, June, is a tropical month in Arch, Oklahoma, with an average temperature fluctuating between 88.3°F (31.3°C) and 69.4°F (20.8°C). The commencement of June sees a shift in the average high-temperature, moving from a moderately hot 78.1°F (25.6°C) in May to a hot 88.3°F (31.3°C). Weather in June »Weather in July
July, like June, is another hot summer month in Arch, Oklahoma, with an average temperature fluctuating between 92.5°F (33.6°C) and 72°F (22.2°C). The warmest month is July, with an average high-temperature of 92.5°F (33.6°C) and an average low-temperature of 72°F (22.2°C). July's mean heat index is estimated at a life-threatening hot 113°F (45°C). Weather in July »Weather in August
The last month of the summer, August, is another hot month in Arch, Oklahoma, with temperature in the range of an average low of 70.3°F (21.3°C) and an average high of 92.1°F (33.4°C). August notes an average high-temperature of a still tropical 92.1°F (33.4°C), subtly differing from July's 92.5°F (33.6°C). Weather in August »Weather in September
September, the first month of the autumn in Arch, is still a warm month, with an average temperature ranging between min 64.6°F (18.1°C) and max 85.1°F (29.5°C). With the onset of September, the average high-temperature subtly recedes from August's hot 92.1°F (33.4°C) to a warm 85.1°F (29.5°C). Weather in September »Weather in October
October, like September, is an agreeable autumn month in Arch, Oklahoma, with an average temperature ranging between min 53.1°F (11.7°C) and max 72.1°F (22.3°C). As September transitions to October, the average high-temperature falls from a warm 85.1°F (29.5°C) to an agreeable 72.1°F (22.3°C). Weather in October »Weather in November
The last month of the autumn, November, is also a moderate month in Arch, Oklahoma, with temperature in the range of an average low of 43°F (6.1°C) and an average high of 60.6°F (15.9°C). November brings a decrease in the average high-temperature, falling from October's agreeable 72.1°F (22.3°C) to a moderate 60.6°F (15.9°C). Weather in November »Weather in December
The first month of the winter, December, is also a fresh month in Arch, Oklahoma, with an average temperature fluctuating between 35.6°F (2°C) and 50.5°F (10.3°C). With the onset of December, Arch experiences a modest temperature adjustment, with the average high-temperature receding from a mild 60.6°F (15.9°C) in November to a fresh 50.5°F (10.3°C). Weather in December »Updated: Aug 22, 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
The coldest month is January, with an average high-temperature of 48.7°F (9.3°C) and an average low-temperature of 32.9°F (0.5°C).
Throughout the year, there are 128.5 rainfall days, and 24.25" (616mm) of precipitation is accumulated.
January through April, November and December are months with snowfall.
Throughout the year, there are 5.6 snowfall days, and 2.28" (58mm) of snow is accumulated.
The month with the least rainfall is February, when the rain falls for 8.3 days and typically collects 1.34" (34mm) of precipitation.
February is the month with the most snowfall. Snow falls for 2.2 days and accumulates 0.71" (18mm) of snow.
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.
May is the most humid month, with an average relative humidity of 78%.
The month with the most rainfall is May, when the rain falls for 13 days and typically aggregates up to 3.19" (81mm) of precipitation.
May through October are months without snowfall.
With an average of 14h and 30min of daylight, June has the longest days of the year.
June and July, with an average maximum UV index of 7, are months with the highest UV index.
Arch's warmest month, July, generally records average temperatures ranging from a high of 92.5°F (33.6°C) to a low of 72°F (22.2°C).
August is the least humid month, with an average relative humidity of 67%.
The month with the most sunshine is August, with an average of 10.8h of sunshine.
December has the shortest days of the year in Arch, with an average of 9h and 54min of daylight.
With an average of 5.5h of sunshine, December has the least sunshine of the year.
December is the month with the lowest UV index, with an average maximum UV index of 2.
Average temperature
Arch, OK
The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is January (48.7°F).
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).
Average pressure
Arch, OK
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Arch, OK
- Average wind speed in January:
8.4mph - Average wind speed in February:
8.8mph - Average wind speed in March:
9.2mph - Average wind speed in April:
9.3mph - Average wind speed in May:
8.1mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6mph - Average wind speed in August:
5.9mph - Average wind speed in September:
6.3mph - Average wind speed in October:
7.6mph - Average wind speed in November:
8.6mph - Average wind speed in December:
7.8mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity
Arch, OK
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (67%).
Average rainfall
Arch, OK
- Average rainfall in January:
1.38" - Average rainfall in February:
1.34" - Average rainfall in March:
1.89" - Average rainfall in April:
2.4" - Average rainfall in May:
3.19" - Average rainfall in June:
1.97"
- Average rainfall in July:
2.32" - Average rainfall in August:
2.56" - Average rainfall in September:
2.01" - Average rainfall in October:
2.32" - Average rainfall in November:
1.42" - Average rainfall in December:
1.46"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is February (1.34").
Average rainfall days
Arch, OK
- Average rainfall days in January:
6.9 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
12.4 days - Average rainfall days in April:
12.5 days - Average rainfall days in May:
13 days - Average rainfall days in June:
10.5 days
- Average rainfall days in July:
14.7 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
12 days - Average rainfall days in October:
10.4 days - Average rainfall days in November:
7 days - Average rainfall days in December:
8.5 days
The month with the highest number of rainy days is July (14.7 days).
The month with the least rainy days is January (6.9 days).
Average snowfall
Arch, OK
The month with the highest snowfall is February (0.71").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Arch, OK
- Average snowfall days in January:
1.6 days - Average snowfall days in February:
2.2 days - Average snowfall days in March:
0.5 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0 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:
0 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
0.7 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Arch, OK
- Average daylight in January:
10h and 6min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 30min
- Average daylight in July:
14h and 12min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
9h and 54min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
5h and 36min - Average sunshine in February:
6h and 6min - Average sunshine in March:
6h and 48min - Average sunshine in April:
8h and 18min - Average sunshine in May:
8h and 48min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 42min - Average sunshine in August:
10h and 48min - Average sunshine in September:
9h and 0min - Average sunshine in October:
6h and 24min - Average sunshine in November:
5h and 54min - Average sunshine in December:
5h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days
Arch, OK
- Average sunshine days in January:
22 days - Average sunshine days in February:
15.5 days - Average sunshine days in March:
16.2 days - Average sunshine days in April:
16.1 days - Average sunshine days in May:
15.9 days - Average sunshine days in June:
15.8 days
- Average sunshine days in July:
14.4 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
15.2 days - Average sunshine days in October:
18.7 days - Average sunshine days in November:
21 days - Average sunshine days in December:
20.5 days
The month with the most sunshine days is January (22 days).
The month with the least sunshine days is July (14.4 days).
Average UV index
Arch, OK
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover
Arch, OK
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility
Arch, OK
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).
