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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, the same as December, in Olean, New York, is another subzero cold winter month, with an average temperature fluctuating between 27.9°F (-2.3°C) and 15.8°F (-9°C). January brings the lowest temperatures, with an average high of 27.9°F (-2.3°C) and an average low of 15.8°F (-9°C). Weather in January »
Weather in February
The last month of the winter, February, is another freezing cold month in Olean, New York, with an average temperature fluctuating between 17.6°F (-8°C) and 30.7°F (-0.7°C). Olean, New York, registers an average high-temperature of a still freezing cold 30.7°F (-0.7°C) at the commencement of February, closely related to the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is an icy month in Olean, New York, with an average temperature fluctuating between 24.4°F (-4.2°C) and 40.1°F (4.5°C). The start of March signals an increase in the average high-temperature, moving from a freezing cold 30.7°F (-0.7°C) in February to an icy 40.1°F (4.5°C). Weather in March »
Weather in April
April in Olean, New York, is a fresh spring month, with an average temperature fluctuating between 34.3°F (1.3°C) and 52.5°F (11.4°C). The arrival of April brings an increase in high-temperatures, moving from an icy 40.1°F (4.5°C) in March to a fresh 52.5°F (11.4°C). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Olean, New York, with temperature in the range of an average low of 45.1°F (7.3°C) and an average high of 66°F (18.9°C). The start of May brings a rise in the average high-temperature, moving from a fresh 52.5°F (11.4°C) in April to a comfortable 66°F (18.9°C). Weather in May »
Weather in June
June, the first month of the summer in Olean, is a pleasant month, with an average temperature ranging between max 73°F (22.8°C) and min 51.8°F (11°C). Observing a minor shift, the average high-temperature during June adjusts from May's enjoyable 66°F (18.9°C) to an agreeable 73°F (22.8°C). Weather in June »
Weather in July
July is a warm summer month in Olean, New York, with temperature in the range of an average high of 78.4°F (25.8°C) and an average low of 55.9°F (13.3°C). July brings the highest temperatures, with an average high of 78.4°F (25.8°C) and an average low of 55.9°F (13.3°C). Weather in July »
Weather in August
August, the last month of the summer in Olean, is also a moderately hot month, with an average temperature varying between 76.3°F (24.6°C) and 54.5°F (12.5°C). The shift into August uncovers an average high-temperature of a still moderately hot 76.3°F (24.6°C), subtly different from the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Olean, is also an agreeable month, with an average temperature varying between 69.6°F (20.9°C) and 49.5°F (9.7°C). The arrival of September is marked by a minor reduction in average high-temperature, sliding from a warm 76.3°F (24.6°C) in August to a pleasant 69.6°F (20.9°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Olean, New York, with temperature in the range of an average low of 41.2°F (5.1°C) and an average high of 56.7°F (13.7°C). The start of October comes with a reduction in the average high-temperature, receding from a pleasant 69.6°F (20.9°C) in September to a moderate 56.7°F (13.7°C). Weather in October »
Weather in November
November, the last month of the autumn in Olean, is also a frosty month, with an average temperature varying between 30°F (-1.1°C) and 43.5°F (6.4°C). Olean in November demonstrates a small temperature transition, adjusting from an average high of a mild 56.7°F (13.7°C) in October to a frosty 43.5°F (6.4°C). Weather in November »
Weather in December
December, the first month of the winter in Olean, is also an icy month, with an average temperature fluctuating between 33.8°F (1°C) and 23.9°F (-4.5°C). The commencement of December indicates a shift in the average high-temperature, receding from November's chilly 43.5°F (6.4°C) to an icy 33.8°F (1°C). Weather in December »
Updated: Aug 19, 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 time of the year is the coldest?
January, having an average high-temperature of 27.9°F (-2.3°C) and an average low-temperature of 15.8°F (-9°C), is the coldest month.
What are the most humid months?
January and February, with an average relative humidity of 89%, are most humid months.
How much does it rain?
Throughout the year, there are 168.9 rainfall days, and 30" (762mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through May, October through December.
How many days does it snow in Olean?
In Olean, during the entire year, snow falls for 92.6 days and aggregates up to 43.58" (1107mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 2.3h of sunshine.
What are the months with the lowest UV index?
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Olean.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 19 days and accumulates 10.63" (270mm) 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 EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What is the wettest month?
The month with the most rainfall is April, when the rain falls for 16.6 days and typically aggregates up to 3.35" (85mm) of precipitation.
What are the least humid months?
May through July, with an average relative humidity of 79%, are the least humid months.
What is the month with the highest UV index in Olean?
The months with the highest UV index in Olean are May through August, with an average maximum UV index of 5.
When it does not snow?
In Olean, snow does not fall in June through September.
When are the longest days?
The month with the longest days is June, with an average of 15h and 12min of daylight.
What are the warmest months in Olean?
July, on average, is the warmest month, registering a high temperature of 78.4°F (25.8°C) and a low of 55.9°F (13.3°C).
What month has the most sunshine?
July has the most sunshine of the year in Olean, with an average of 9.4h of sunshine.
What is the driest month?
September is the month with the least rainfall. Rain falls for 15.4 days and accumulates 1.93" (49mm) of precipitation.
What is the month with the shortest days?
With an average of 9h and 12min of daylight, December has the shortest days of the year.
Average temperature
Olean, NY
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.9°F).
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure
Olean, NY
- Average pressure in January:
30.07"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Olean, NY
- Average wind speed in January:
9.7mph - Average wind speed in February:
9.3mph - Average wind speed in March:
8.7mph - 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:
6mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6.2mph - Average wind speed in October:
7.5mph - Average wind speed in November:
8.1mph - Average wind speed in December:
8.9mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity
Olean, NY
The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are May, June and July (79%).
Average rainfall
Olean, NY
- Average rainfall in January:
2.2" - Average rainfall in February:
2.36" - Average rainfall in March:
2.24" - Average rainfall in April:
3.35" - Average rainfall in May:
2.68" - Average rainfall in June:
2.64"
- Average rainfall in July:
2.68" - Average rainfall in August:
2.32" - Average rainfall in September:
1.93" - Average rainfall in October:
3.03" - Average rainfall in November:
2.05" - Average rainfall in December:
2.52"
The wettest month (with the highest rainfall) is April (3.35").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days
Olean, NY
- Average rainfall days in January:
6.8 days - Average rainfall days in February:
7.1 days - Average rainfall days in March:
12.2 days - Average rainfall days in April:
16.6 days - Average rainfall days in May:
18.7 days - Average rainfall days in June:
18.3 days
- Average rainfall days in July:
18.5 days - Average rainfall days in August:
18.5 days - Average rainfall days in September:
15.4 days - Average rainfall days in October:
17.5 days - Average rainfall days in November:
10.4 days - Average rainfall days in December:
8.9 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is January (6.8 days).
Average snowfall
Olean, NY
- Average snowfall in January:
8.15" - Average snowfall in February:
10.63" - Average snowfall in March:
5.35" - Average snowfall in April:
3.11" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is February (10.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Olean, NY
- Average snowfall days in January:
20.2 days - Average snowfall days in February:
19 days - Average snowfall days in March:
13.7 days - Average snowfall days in April:
6.5 days - Average snowfall days in May:
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:
2.4 days - Average snowfall days in November:
11 days - Average snowfall days in December:
18.8 days
The month with the highest number of snowfall days is January (20.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Olean, NY
- Average daylight in January:
9h and 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
2h and 2min - Average sunshine in February:
2h and 4min - Average sunshine in March:
4h and 5min - Average sunshine in April:
6h and 4min - Average sunshine in May:
8h and 1min - Average sunshine in June:
8h and 5min
- Average sunshine in July:
9h and 2min - Average sunshine in August:
9h and 2min - Average sunshine in September:
8h and 0min - Average sunshine in October:
4h and 2min - Average sunshine in November:
3h and 5min - Average sunshine in December:
2h and 3min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days
Olean, NY
- Average sunshine days in January:
6.7 days - Average sunshine days in February:
5.9 days - Average sunshine days in March:
8.5 days - Average sunshine days in April:
8.3 days - Average sunshine days in May:
10.1 days - Average sunshine days in June:
10 days
- Average sunshine days in July:
9.8 days - Average sunshine days in August:
9.5 days - Average sunshine days in September:
12.4 days - Average sunshine days in October:
10.7 days - Average sunshine days in November:
10.6 days - Average sunshine days in December:
7.8 days
The month with the most sunshine days is September (12.4 days).
The month with the least sunshine days is February (5.9 days).
Average UV index
Olean, NY
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover
Olean, NY
The month with the most cloud cover is January (Cloud cover 79).
The months with the least cloud cover are July and August (Cloud cover 43).
Average visibility
Olean, NY
The months with the highest visibility are March, April, May, June, July, October and November (5mi).
The months with the lowest visibility are January, February, August, September and December (4mi).
Olean, New York, USA
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