October weather forecastRochester, NH
October
Weather in October
October brings a definitive autumn feel to Rochester. The city encounters a change in weather with an average lowest temperature of 44.1°F (6.7°C), marking a significant drop from the temperatures seen in September. The deteriorating weather conditions are highlighted by an increased rainfall from September's 1.5" (38mm) to October's 3.11" (79mm). A decrease in daylight hours adds to the autumn ambiance, as the rapidly changing scenery alerts residents to the forthcoming winter chills.Temperature
The onset of October is marked by a decrease in temperature, transitioning from an agreeable 69.6°F (20.9°C) in September to a mild 57.9°F (14.4°C). An average temperature of 44.1°F (6.7°C) is recorded during the nights in October.Humidity
In Rochester, the average relative humidity in October is 80%.Rainfall
The months with the most rainfall are October and December, with an average 3.11" (79mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. October is the first month it typically snows in Rochester. Throughout October, in the average 0.4 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 40 snowfall days, and 27.8" (706mm) of snow is accumulated.Daylight
The average length of the day in October is 11h and 1min.On the first day of October, sunrise is at 6:42 am and sunset at 6:24 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:36 pm EDT.
Sunshine
In Rochester, the average sunshine in October is 5.9h.UV index
The average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 3 in October suggests the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Rochester, NH
- Average high temperature in October: 57.9°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in October: 44.1°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in October
Rochester, NH
- Average pressure in October: 30"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in October
Rochester, NH
- Average wind speed in October: 7.3mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in October
Rochester, NH
- Average humidity in October: 80%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is April (75%).
Average rainfall in October
Rochester, NH
- Average rainfall in October: 3.11"
The wettest months (with the highest rainfall) are October and December (3.11").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in October
Rochester, NH
- Average rainfall days in October: 12.9 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in October
Rochester, NH
- Average snowfall in October: 0.08"
The month with the highest snowfall is December (6.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Rochester, NH
- Average snowfall days in October: 0.4 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Rochester, NH
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in October: 5h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in October
Rochester, NH
- Average sunshine days in October: 15 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is April (13.3 days).
Average UV index in October
Rochester, NH
- Average UV index in October: 3
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in October
Rochester, NH
- Average cloud cover in October: 44
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in October
Rochester, NH
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).
