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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Olean, Missouri, is an icy winter month, with an average temperature fluctuating between 38.8°F (3.8°C) and 24.3°F (-4.3°C). In Olean, Missouri, the lowest temperatures are generally noted in January, averaging a high of 38.8°F (3.8°C) and a low of 24.3°F (-4.3°C). Weather in January »
Weather in February
The last month of the winter, February, is a chilly month in Olean, Missouri, with an average temperature varying between 27.9°F (-2.3°C) and 43.2°F (6.2°C). Olean, Missouri, marks the onset of February with an average high-temperature of a frosty 43.2°F (6.2°C), subtly divergent from January's 38.8°F (3.8°C). Weather in February »
Weather in March
March, the first month of the spring in Olean, is a fresh month, with an average temperature varying between 55.2°F (12.9°C) and 37.9°F (3.3°C). With the arrival of March, the average high-temperature transitions from a chilly 43.2°F (6.2°C) in February to a fresh 55.2°F (12.9°C). Weather in March »
Weather in April
April is a refreshing spring month in Olean, Missouri, with an average temperature ranging between max 66.2°F (19°C) and min 46.8°F (8.2°C). April's onset witnesses a shift in the average high-temperature, moving from a cool 55.2°F (12.9°C) in March to an enjoyable 66.2°F (19°C). Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in Olean, Missouri, with an average temperature fluctuating between 75.9°F (24.4°C) and 55.9°F (13.3°C). As April transitions into May, a change in temperatures is observed, with average highs moving from a comfortable 66.2°F (19°C) to a moderately hot 75.9°F (24.4°C). Weather in May »
Weather in June
June, the first month of the summer in Olean, is a hot month, with an average temperature ranging between max 86.5°F (30.3°C) and min 65.5°F (18.6°C). As June arrives, a rise in the average high-temperature is observed, moving from a moderately hot 75.9°F (24.4°C) in May to a hot 86.5°F (30.3°C). Weather in June »
Weather in July
July, like June, is another tropical summer month in Olean, Missouri, with an average temperature ranging between max 88.9°F (31.6°C) and min 68°F (20°C). July is the warmest month, with the temperature often reaching an average high of 88.9°F (31.6°C) and an average low of 68°F (20°C). In July, the heat index is evaluated at a blisteringly hot 105.8°F (41°C). Weather in July »
Weather in August
August, the last month of the summer in Olean, is another tropical month, with temperature in the range of an average high of 87.1°F (30.6°C) and an average low of 65.7°F (18.7°C). In August, Olean notes an average high-temperature of a still hot 87.1°F (30.6°C), hardly different from the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Olean, is also a moderately hot month, with an average temperature varying between 79.9°F (26.6°C) and 59.5°F (15.3°C). Olean's September weather features a light decline in high-temperatures, reducing from a tropical 87.1°F (30.6°C) in August to a moderately hot 79.9°F (26.6°C). Weather in September »
Weather in October
October, like September, in Olean, Missouri, is another refreshing autumn month, with an average temperature varying between 48°F (8.9°C) and 65.7°F (18.7°C). October's arrival coincides with a drop in the average high-temperature, decreasing from September's moderately hot 79.9°F (26.6°C) to an enjoyable 65.7°F (18.7°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Olean, Missouri, with temperature in the range of an average low of 36.9°F (2.7°C) and an average high of 53.8°F (12.1°C). As October transitions into November, Olean sees a drop in the average high-temperature, transitioning from a refreshing 65.7°F (18.7°C) to a fresh 53.8°F (12.1°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Olean, Missouri, with an average temperature varying between 29.3°F (-1.5°C) and 43.2°F (6.2°C). In December, the meteorological conditions alter, with the average high-temperature shifting from a fresh 53.8°F (12.1°C) in November to a frosty 43.2°F (6.2°C). Weather in December »
Updated: Jul 12, 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
What is the coldest time of year?
January stands out as Olean's coldest month, with an average high-temperature of 38.8°F (3.8°C) and a low-temperature of 24.3°F (-4.3°C).
What is the driest month?
The month with the least rainfall is January, when the rain falls for 6.7 days and typically collects 1.18" (30mm) of precipitation.
How much does it rain?
Throughout the year, there are 136.9 rainfall days, and 26.02" (661mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through May, November and December.
How many days does it snow?
In Olean, during the entire year, snow falls for 23.1 days and aggregates up to 8.03" (204mm) of snow.
What is the month with the least sunshine?
January and February, with an average of 4.9h of sunshine, are months with the least sunshine.
What are the months with the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 7 days and typically aggregates up to 2.8" (71mm) of snow.
When is Daylight Saving Time (DST)?
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.
What is the most humid month?
May is the most humid month, with an average relative humidity of 77%.
What is the wettest month?
May is the month with the most rainfall. Rain falls for 16.3 days and accumulates 3.58" (91mm) of precipitation.
When it does not snow?
June through October are months without snowfall.
When are the longest days?
With an average of 14h and 48min of daylight, June has the longest days of the year in Olean, Missouri.
What month has the most sunshine?
The month with the most sunshine is June, with an average of 10.5h of sunshine.
What are the months with the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What is the warmest month?
July is the month that records the highest temperatures in Olean, with averages ranging from a high of 88.9°F (31.6°C) to a low of 68°F (20°C).
What is the least humid month?
August and October, with an average relative humidity of 73%, are the least humid months.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 30min of daylight.
Average temperature
Olean, MO
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (38.8°F).
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure
Olean, MO
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"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 (29.92"Hg).
Average wind speed
Olean, MO
- Average wind speed in January:
8.9mph - Average wind speed in February:
8.8mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.8mph - Average wind speed in May:
7.3mph - Average wind speed in June:
6.8mph
- Average wind speed in July:
5.8mph - 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:
8.4mph - Average wind speed in December:
8.6mph
The windiest months (with the highest average wind speed) are January and March (8.9mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity
Olean, MO
The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are August and October (73%).
Average rainfall
Olean, MO
- Average rainfall in January:
1.18" - Average rainfall in February:
1.38" - Average rainfall in March:
2.05" - Average rainfall in April:
3.23" - Average rainfall in May:
3.58" - Average rainfall in June:
2.91"
- Average rainfall in July:
2.64" - Average rainfall in August:
2.28" - Average rainfall in September:
1.73" - Average rainfall in October:
2.17" - Average rainfall in November:
1.46" - Average rainfall in December:
1.42"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days
Olean, MO
- Average rainfall days in January:
6.7 days - Average rainfall days in February:
7.5 days - Average rainfall days in March:
12.9 days - Average rainfall days in April:
13.7 days - Average rainfall days in May:
16.3 days - Average rainfall days in June:
14.9 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
13.4 days - Average rainfall days in September:
10.9 days - Average rainfall days in October:
9.8 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
6.7 days
The month with the highest number of rainy days is May (16.3 days).
The months with the least rainy days are January and December (6.7 days).
Average snowfall
Olean, MO
The month with the highest snowfall is February (2.8").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Olean, MO
- Average snowfall days in January:
6.9 days - Average snowfall days in February:
7 days - Average snowfall days in March:
2.6 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0.1 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:
0.1 days - Average snowfall days in November:
1.2 days - Average snowfall days in December:
4.9 days
The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Olean, MO
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 3min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
4h and 5min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 3min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 3min - Average sunshine in December:
5h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 54min).
Average sunshine days
Olean, MO
- Average sunshine days in January:
19 days - Average sunshine days in February:
14.7 days - Average sunshine days in March:
14.7 days - Average sunshine days in April:
13.9 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
12.9 days
- Average sunshine days in July:
13.6 days - Average sunshine days in August:
14.7 days - Average sunshine days in September:
16.6 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
19.4 days - Average sunshine days in December:
19.6 days
The month with the most sunshine days is December (19.6 days).
The month with the least sunshine days is May (11.8 days).
Average UV index
Olean, MO
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Olean, MO
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility
Olean, MO
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).
Olean, Missouri, USA
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