October weather forecast
Charlestown, MD

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Weather in October

October, like September, in Charlestown, Maryland, is another refreshing autumn month, with an average temperature varying between 64.9°F (18.3°C) and 50.2°F (10.1°C).

Temperature

October weather is marked by a drop in the average high-temperature, falling from a moderately hot 76.6°F (24.8°C) in September to a comfortable 64.9°F (18.3°C). An average low-temperature of 50.2°F (10.1°C) is expected during October.

Humidity

The average relative humidity in October in Charlestown is 78%.

Rainfall

In Charlestown, during October, the rain falls for 11.6 days and regularly aggregates up to 2.17" (55mm) of precipitation. Throughout the year, there are 150.3 rainfall days, and 29.25" (743mm) of precipitation is accumulated.

Snowfall

April, June through October are months without snowfall in Charlestown, Maryland.

Ocean temperature

In Charlestown, in October, the average water temperature is 64.6°F (18.1°C).
Note: Swimming in 64.6°F (18.1°C) does not offer a pleasant experience for most individuals. The act of controlling one's breathing becomes progressively difficult as the water temperature goes under 69.8°F (21°C).

Daylight

In Charlestown, the average length of the day in October is 11h and 9min.
On the first day of October, sunrise is at 7:00 am and sunset at 6:45 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 6:03 pm EDT.

Sunshine

In Charlestown, the average sunshine in October is 5.6h.

UV index

The average daily maximum UV index in October in Charlestown, Maryland, is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index, 3 during October, leads to the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

What is the average October temperature in Charlestown?

The high-temperature, in October, in Charlestown, is 64.9°F (18.3°C), while the low-temperature averages to 50.2°F (10.1°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is evaluated at 89.6°F (32°C).

What is the average humidity in October in Charlestown?

In October, the average relative humidity in Charlestown, Maryland, is 78%.

How many days does it rain in October in Charlestown?

In October, the rain falls for 11.6 days. Throughout October, 2.17" (55mm) of precipitation is accumulated.

When it does not snow in Charlestown?

In Charlestown, Maryland, snow does not fall in April, June through October.

Does it snow in Charlestown in October?

In Charlestown, Maryland, in October, it doesn't snow. In November, it regularly snows.

What is the ocean temperature in October in Charlestown?

In Charlestown, Maryland, the average seawater temperature in October is 64.6°F (18.1°C). For most, swimming in 64.6°F (18.1°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

What is the average length of the day in October in Charlestown?

In Charlestown, Maryland, the average day length in October is 11h and 9min.

What time are sunrise and sunset in October in Charlestown?

On the first day of October in Charlestown, sunrise is at 7:00 am and sunset at 6:45 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 6:03 pm EDT.

How many hours of sunshine does Charlestown have in October?

In October, the average sunshine duration is 5.6h.

How high is the UV index in October in Charlestown?

The average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND
Sep
October
Nov
Average high temperature
76.6°F 24.8°C
64.9°F 18.3°C
53.1°F 11.7°C
Average low temperature
59.9°F 15.5°C
50.2°F 10.1°C
39.2°F 4°C
Average pressure
30.05" 763mmHg
30.03" 763mmHg
30.13" 765mmHg
Average wind speed
6mph 9.7km/h
7.3mph 11.7km/h
7.7mph 12.4km/h
Average max. wind speed
6.2mph 10km/h
8mph 12.9km/h
8.4mph 13.5km/h
Average wind speed gusts
9.6mph 15.4km/h
12.1mph 19.5km/h
12.8mph 20.6km/h
Average humidity
78%
78%
75%
Average rainfall
2.05" 52mm
2.17" 55mm
2.01" 51mm
Average rainfall days
12.8
11.6
8.1
Average snowfall
0" 0mm
0" 0mm
0.31" 8mm
Average snowfall days
0
0
0.2
Average sea temperature
72.1°F 22.3°C
64.5°F 18.1°C
55.5°F 13.1°C
Average daylight
12h 2min
11h 1min
10h 0min
Average sunshine
9h 1min
5h 4min
5h 5min
Average sunshine days
15.4
17.5
20.4
Average UV index
5
3
2
Average cloud cover
36%
39%
36%
Average visibility
5mi 8km
6mi 9.7km
6mi 9.7km

Average temperature in October
Charlestown, MD

Average temperature in October - Charlestown, MD
  • Average high temperature in October: 64.9°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in October: 50.2°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in October
Charlestown, MD

Average pressure in October - Charlestown, MD
  • Average pressure in October: 30.03"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in October
Charlestown, MD

Average wind speed in October - Charlestown, MD
  • Average wind speed in October: 7.3mph

The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in October
Charlestown, MD

Average humidity in October - Charlestown, MD
  • Average humidity in October: 78%

The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in October
Charlestown, MD

Average rainfall in October - Charlestown, MD
  • Average rainfall in October: 2.17"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (1.85").

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Average rainfall days in October
Charlestown, MD

Average rainfall days in October - Charlestown, MD
  • Average rainfall days in October: 11.6 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in October
Charlestown, MD

Average snowfall in October - Charlestown, MD
  • Average snowfall in October: 0"

The month with the highest snowfall is January (2.24").
The months with the least snowfall are April, June, July, August, September and October (0").

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Average snowfall days in October
Charlestown, MD

Average snowfall days in October - Charlestown, MD
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).

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Average sea temperature in October
Charlestown, MD

Average sea temperature in October - Charlestown, MD
  • Average sea temperature in October: 64.5°F

The best month for swimming (with the highest average sea temperature) is August (76.3°F).
The coldest month (with the lowest average sea temperature) is February (40.9°F).

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Average daylight in October /
Average sunshine in October
Charlestown, MD

Average daylight in October / Average sunshine in October - Charlestown, MD
  • Average daylight in October: 11h and 1min

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

  • Average sunshine in October: 5h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in October
Charlestown, MD

Average sunshine days in October - Charlestown, MD
  • Average sunshine days in October: 17.5 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is July (11.6 days).

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Average UV index in October
Charlestown, MD

Average UV index in October - Charlestown, MD
  • Average UV index in October: 3

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in October
Charlestown, MD

Average cloud cover in October - Charlestown, MD
  • Average cloud cover in October: 39

The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in October
Charlestown, MD

Average visibility in October - Charlestown, MD
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

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Charlestown, Maryland, USA

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