October weather forecast
Bryn Mawr, CA

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Weather in October

October, like September, in Bryn Mawr, California, is another warm autumn month, with an average temperature ranging between min 54.3°F (12.4°C) and max 76.3°F (24.6°C).

Temperature

October implies a gentle temperature shift, with average high-temperatures reducing from September's hot 86.2°F (30.1°C) to a moderately hot 76.3°F (24.6°C). Bryn Mawr's average low-temperature of 54.3°F (12.4°C) in October reflects a considerable decline from the daytime peak.

Humidity

In Bryn Mawr, the average relative humidity in October is 43%.

Rainfall

In Bryn Mawr, in October, during 2.5 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. In Bryn Mawr, during the entire year, the rain falls for 49.1 days and collects up to 6.5" (165mm) of precipitation.

Snowfall

January, March through December are months without snowfall in Bryn Mawr.

Daylight

In Bryn Mawr, the average length of the day in October is 11h and 19min.
On the first day of October in Bryn Mawr, sunrise is at 6:43 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:56 pm PDT.

Sunshine

The average sunshine in October in Bryn Mawr is 9h.

UV index

In October, the average daily maximum UV index in Bryn Mawr is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 5 during October translates into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Frequently asked questions

What are October temperatures in Bryn Mawr?

In October, the average high-temperature and low-temperature are 76.3°F (24.6°C) and 54.3°F (12.4°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in September is estimated at 86°F (30°C).

What is the average humidity in October in Bryn Mawr?

In October, the average relative humidity in Bryn Mawr is 43%.

How much does it rain in Bryn Mawr in October?

In Bryn Mawr, California, in October, during 2.5 rainfall days, 0.16" (4mm) of precipitation is typically accumulated.

When it does not snow in Bryn Mawr?

In Bryn Mawr, California, snow does not fall in January, March through December.

How many hours of daylight does Bryn Mawr have in October?

The average day length in October in Bryn Mawr is 11h and 19min.

What time are sunrise and sunset in October in Bryn Mawr?

On the first day of October in Bryn Mawr, California, sunrise is at 6:43 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:56 pm PDT.

How long on average sun shines in October in Bryn Mawr?

In Bryn Mawr, the average sunshine duration in October is 9h.

What is the UV index intensity in October in Bryn Mawr?

In October, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Bryn Mawr, CA

Average temperature in October - Bryn Mawr, CA
  • Average high temperature in October: 76.3°F

The warmest months (with the highest average high temperature) are July and August (90.3°F).
The month with the lowest average high temperature is December (58.8°F).

  • Average low temperature in October: 54.3°F

The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).

Average pressure in October
Bryn Mawr, CA

Average pressure in October - Bryn Mawr, CA
  • Average pressure in October: 29.93"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in October
Bryn Mawr, CA

Average wind speed in October - Bryn Mawr, CA
  • Average wind speed in October: 5mph

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is September (4.7mph).

Average humidity in October
Bryn Mawr, CA

Average humidity in October - Bryn Mawr, CA
  • Average humidity in October: 43%

The month with the highest relative humidity is February (53%).
The month with the lowest relative humidity is August (37%).

Average rainfall in October
Bryn Mawr, CA

Average rainfall in October - Bryn Mawr, CA
  • Average rainfall in October: 0.16"

The wettest month (with the highest rainfall) is December (1.42").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in October
Bryn Mawr, CA

Average rainfall days in October - Bryn Mawr, CA
  • Average rainfall days in October: 2.5 days

The month with the highest number of rainy days is March (6.7 days).
The month with the least rainy days is June (1.3 days).

Average snowfall days in October
Bryn Mawr, CA

Average snowfall days in October - Bryn Mawr, CA
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in October /
Average sunshine in October
Bryn Mawr, CA

Average daylight in October / Average sunshine in October - Bryn Mawr, CA
  • Average daylight in October: 11h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in October: 9h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

Average sunshine days in October
Bryn Mawr, CA

Average sunshine days in October - Bryn Mawr, CA
  • Average sunshine days in October: 27.2 days

The month with the most sunshine days is June (28 days).
The month with the least sunshine days is February (21.3 days).

Average UV index in October
Bryn Mawr, CA

Average UV index in October - Bryn Mawr, CA
  • Average UV index in October: 5

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in October
Bryn Mawr, CA

Average cloud cover in October - Bryn Mawr, CA
  • Average cloud cover in October: 9

The months with the most cloud cover are February, March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).

Average visibility in October
Bryn Mawr, CA

Average visibility in October - Bryn Mawr, CA
  • Average visibility in October: 6mi

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).

Bryn Mawr, California, USA

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