Climate and monthly weather forecastSpiro, OK
Climate and monthly weather forecast
Weather in January
January, the same as December, in Spiro, Oklahoma, is a frosty winter month, with an average temperature fluctuating between 48°F (8.9°C) and 31.8°F (-0.1°C). January, with its high-temperature average of 48°F (8.9°C) and a low-temperature average of 31.8°F (-0.1°C), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Spiro, is a fresh month, with an average temperature varying between 52.2°F (11.2°C) and 35.4°F (1.9°C). The advent of February sees the average high-temperature at a cool 52.2°F (11.2°C), subtly shifted from January's 48°F (8.9°C). Weather in February »Weather in March
The first month of the spring, March, is an enjoyable month in Spiro, Oklahoma, with an average temperature fluctuating between 43.5°F (6.4°C) and 62.1°F (16.7°C). As Spiro transitions into March, a rise in the average high-temperature is observed, moving from a cool 52.2°F (11.2°C) in February to an enjoyable 62.1°F (16.7°C). Weather in March »Weather in April
April in Spiro, Oklahoma, is an agreeable spring month, with an average temperature fluctuating between 71.2°F (21.8°C) and 50.9°F (10.5°C). April brings a temperature increase, with average high-temperatures moving from March's refreshing 62.1°F (16.7°C) to a pleasant 71.2°F (21.8°C). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Spiro, Oklahoma, with an average temperature varying between 78.8°F (26°C) and 58.8°F (14.9°C). May witnesses a minor rise in the average high-temperature, transitioning from an agreeable 71.2°F (21.8°C) in April to a moderately hot 78.8°F (26°C). Weather in May »Weather in June
The first month of the summer, June, is a tropical month in Spiro, Oklahoma, with an average temperature varying between 68.2°F (20.1°C) and 89.2°F (31.8°C). June's arrival brings a temperature shift, moving from a warm 78.8°F (26°C) in May to a tropical 89.2°F (31.8°C). Weather in June »Weather in July
July, like June, is a hot summer month in Spiro, Oklahoma, with an average temperature ranging between min 71.2°F (21.8°C) and max 93°F (33.9°C). Spiro reaches its highest average temperatures in July, measuring 93°F (33.9°C) at the peak and 71.2°F (21.8°C) at the lowest. For July, the heat index is computed to be a blazing hot 114.8°F (46°C). Weather in July »Weather in August
August, the last month of the summer in Spiro, is also a hot month, with an average temperature ranging between max 92.1°F (33.4°C) and min 69.6°F (20.9°C). The transition into August marks the average high-temperature at a still tropical 92.1°F (33.4°C), differing minimally from July's 93°F (33.9°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Spiro, Oklahoma, with temperature in the range of an average low of 63.5°F (17.5°C) and an average high of 85.1°F (29.5°C). September is characterized by a mild reduction in the average high-temperature, from a tropical 92.1°F (33.4°C) in August to a warm 85.1°F (29.5°C). Weather in September »Weather in October
October, like September, is another pleasant autumn month in Spiro, Oklahoma, with an average temperature fluctuating between 52.5°F (11.4°C) and 72.1°F (22.3°C). With October's onset, the weather shows a temperature decrease, transitioning from a warm 85.1°F (29.5°C) in September to an agreeable 72.1°F (22.3°C). Weather in October »Weather in November
The last month of the autumn, November, is another mild month in Spiro, Oklahoma, with temperature in the range of an average high of 60.1°F (15.6°C) and an average low of 42.1°F (5.6°C). Onset of November comes with a temperature decline, the average high falling from a pleasant 72.1°F (22.3°C) in October to a mild 60.1°F (15.6°C). Weather in November »Weather in December
December, the first month of the winter in Spiro, is also a fresh month, with an average temperature fluctuating between 35.2°F (1.8°C) and 50.4°F (10.2°C). A shift in Spiro's weather is observed as November turns into December, with the average high temperature reducing from a refreshing 60.1°F (15.6°C) to a cool 50.4°F (10.2°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Spiro, OK
The warmest month (with the highest average high temperature) is July (93°F).
The month with the lowest average high temperature is January (48°F).
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.8°F).
Average pressure
Spiro, OK
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Spiro, OK
- Average wind speed in January:
7.1mph - Average wind speed in February:
7.4mph - Average wind speed in March:
7.9mph - Average wind speed in April:
8.1mph - Average wind speed in May:
6.9mph - Average wind speed in June:
6mph
- Average wind speed in July:
5mph - Average wind speed in August:
5mph - Average wind speed in September:
5.4mph - Average wind speed in October:
6.5mph - Average wind speed in November:
7.2mph - Average wind speed in December:
6.6mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity
Spiro, OK
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is August (69%).
Average rainfall
Spiro, OK
- Average rainfall in January:
2.17" - Average rainfall in February:
2.17" - Average rainfall in March:
3.19" - Average rainfall in April:
3.74" - Average rainfall in May:
4.45" - Average rainfall in June:
2.48"
- Average rainfall in July:
2.6" - Average rainfall in August:
3.11" - Average rainfall in September:
2.72" - Average rainfall in October:
3.03" - Average rainfall in November:
2.44" - Average rainfall in December:
2.68"
The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are January and February (2.17").
Average rainfall days
Spiro, OK
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
10.3 days - Average rainfall days in March:
15.6 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
15.2 days - Average rainfall days in June:
12 days
- Average rainfall days in July:
14.1 days - Average rainfall days in August:
14.1 days - Average rainfall days in September:
11.4 days - Average rainfall days in October:
12.2 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
9.9 days
The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is November (8.9 days).
Average snowfall
Spiro, OK
The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Spiro, OK
- Average snowfall days in January:
1.8 days - Average snowfall days in February:
2.1 days - Average snowfall days in March:
0.7 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:
0.6 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Spiro, OK
- Average daylight in January:
10h and 6min - Average daylight in February:
10h and 54min - 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 18min - 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 18min - Average daylight in December:
9h and 48min
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 48min).
- Average sunshine in January:
5h and 30min - Average sunshine in February:
5h and 48min - Average sunshine in March:
6h and 48min - Average sunshine in April:
8h and 30min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
10h and 54min - Average sunshine in August:
10h and 54min - Average sunshine in September:
9h and 30min - Average sunshine in October:
6h and 12min - Average sunshine in November:
5h and 54min - Average sunshine in December:
5h and 36min
The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days
Spiro, OK
- Average sunshine days in January:
19.6 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
14.2 days - Average sunshine days in April:
13.6 days - Average sunshine days in May:
13.4 days - Average sunshine days in June:
15.3 days
- Average sunshine days in July:
13.7 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
16.8 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
19.2 days - Average sunshine days in December:
19.4 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is May (13.4 days).
Average UV index
Spiro, 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
Spiro, OK
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility
Spiro, 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).





