The best times to visit Frederick for ideal weather are

April 30th to October 14th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other Frederick Travel Info

Weather in Frederick

Temperature

Average temperatures in Frederick vary drastically. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 34th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Frederick, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 82.2°F (27.9°C) with temperatures rarely dropping below 66.8°F (19.3°C) at night.

Frederick Temperatures (Fahrenheit)

Key
High
Average
Low

Frederick Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Frederick Perceived Temperature (F)

Key
High
Average
Low

Frederick Perceived Temperature (C)

Key
High
Average
Low

 

Average Frederick Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 35.2 28.7 23
Feb 36.7 29.3 23.1
Mar 49.3 39.8 32.2
Apr 62.1 52.1 44.3
May 70.6 61.6 54.4
Jun 76.7 68.5 61.5
Jul 80.8 72.4 65.6
Aug 78.4 70.3 63.9
Sep 70.5 62.6 56.5
Oct 61.3 54.1 48.3
Nov 49.4 42.6 37.3
Dec 41.1 34.9 29.8

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 1.8 -1.8 -5
Feb 2.6 -1.5 -4.9
Mar 9.6 4.3 0.1
Apr 16.7 11.2 6.8
May 21.4 16.4 12.4
Jun 24.8 20.3 16.4
Jul 27.1 22.4 18.7
Aug 25.8 21.3 17.7
Sep 21.4 17 13.6
Oct 16.3 12.3 9.1
Nov 9.7 5.9 2.9
Dec 5.1 1.6 -1.2

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Frederick are January, November, and then September. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late January. For example, on the week of January 22nd there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in late November to early December with an average of 3 days of significant precipitation the week of November 26th.

When can you find snow in Frederick? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Frederick.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Frederick (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 17% 0 2.6
Feb 25% 0 2.9
Mar 28% 0 4.7
Apr 25% 0 4.2
May 24% 0 4.2
Jun 25% 0 4.5
Jul 22% 0 2.8
Aug 22% 0 3.9
Sep 21% 0 4.2
Oct 22% 0 4.7
Nov 20% 0 2.9
Dec 28% 0 4.9

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 17 0 6.6
Feb 25 0 7.4
Mar 28 0 11.9
Apr 25 0 10.7
May 24 0 10.7
Jun 25 0 11.4
Jul 22 0 7.1
Aug 22 0 9.9
Sep 21 0 10.7
Oct 22 0 11.9
Nov 20 0 7.4
Dec 28 0 12.4

 

Humidity and Wind

Frederick has some slightly muggy months, with moderately humid months on the other side of the year. The least humid month is April (43.3% relative humidity), and the most humid month is September (61.9%).

Wind in Frederick is usually calm. The windiest month is February, followed by January and December. February’s average wind speed of around 9 knots (10.4 MPH or 16.7 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid February where average top sustained speeds reach 16.3 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Frederick.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 8.7 Gentle breeze 15 Significant breeze
Feb 9 Gentle breeze 15.6 Significant breeze
Mar 8.1 Gentle breeze 13.7 Significant breeze
Apr 7.8 Gentle breeze 13.4 Significant breeze
May 6.1 Light breeze 10.7 Significant breeze
Jun 5.6 Light breeze 9.9 Gentle breeze
Jul 5 Light breeze 9.3 Significant breeze
Aug 4.6 Light breeze 8.7 Gentle breeze
Sep 5 Light breeze 8.9 Significant breeze
Oct 6.5 Light breeze 10.9 Gentle breeze
Nov 7.4 Gentle breeze 12.3 Significant breeze
Dec 8.7 Gentle breeze 14.6 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 53%
Feb 50.3%
Mar 46.3%
Apr 43.3%
May 53.6%
Jun 56.3%
Jul 55.9%
Aug 60.7%
Sep 61.9%
Oct 59.4%
Nov 53.1%
Dec 60.5%

 

Is it Safe to Travel to Frederick?

Our best data indicates this area is generally safe. As of Dec 04, 2023 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Dec 04, 2023.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Frederick, MD, US is July, followed by June and August. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Frederick in October. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is somewhat extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 56.1 in October means 56.1% of the tourists vs. July.

 

 

Overall Frederick Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 76.9°F (24.9°C) and 40.1°F (4.5°C) with far warmer temperatures in the later months. Rain is somewhat common with 7 to 9 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see moderate precipitation with about 7 days of precipitation per month. June – August is the busiest season for tourism in Frederick, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 76.7°F (24.8°C) and 45.3°F (7.4°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 6 to 7 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is far too cold this time of year in Frederick to be enjoyable for warm weather travelers. The average high during this season is between 42.1°F (5.6°C) and 32.6°F (0.3°C). On average, it rains or snows a fair amount: 5 to 9 times per month. These times of year are fairly slow with tourists.

 

Best Times to Travel› the United States › Frederick, MD, US