The best times to visit Rosemead for ideal weather are

May 21st to October 21st

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

 

 


Other Rosemead Travel Info

Weather in Rosemead

Temperature

Average temperatures in Rosemead vary greatly. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a very low chance of rain or snow throughout the year. The area is more temperate than most — in the 61st 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 Rosemead, the hottest months are July, August, and then September. See average monthly temperatures below. The warmest time of year is generally early July where highs are regularly around 85.1°F (29.5°C) with temperatures rarely dropping below 66.5°F (19.2°C) at night.

Rosemead Temperatures (Fahrenheit)

Key
High
Average
Low

Rosemead 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.

Rosemead Perceived Temperature (F)

Key
High
Average
Low

Rosemead Perceived Temperature (C)

Key
High
Average
Low

 

Average Rosemead 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

MonthAvg. High (°F)Avg. Mean (°F)Avg. Low (°F)
Jan56.945.538.9
Feb55.343.836.7
Mar60.648.240.2
Apr63.550.942.3
May69.157.448.8
Jun7766.357.4
Jul83.673.765.4
Aug83.772.864
Sep81.368.959.9
Oct70.658.550.4
Nov62.451.144.1
Dec53.643.136.7

Show Celsius

MonthAvg. High (°C)Avg. Mean (°C)Avg. Low (°C)
Jan13.87.53.8
Feb12.96.62.6
Mar15.994.6
Apr17.510.55.7
May20.614.19.3
Jun2519.114.1
Jul28.723.218.6
Aug28.722.717.8
Sep27.420.515.5
Oct21.414.710.2
Nov16.910.66.7
Dec126.22.6

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Rosemead are January, February, and then March. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early January. For example, on the week of January 1st there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late May with an average of 0 days of significant precipitation the week of May 21st.

When can you find snow in Rosemead? 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 Rosemead.

Key
Days with precipitation

Snow on the Ground

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

Key
Snow depth

Average Rain and Snow by Month

Show Inches

MonthDaily Chance of RainAverage Snow Depth (in)Total Precipitation (in)
Jan0%00
Feb0%00
Mar0%00
Apr0%00
May1%00.2
Jun0%00
Jul0%00
Aug0%00
Sep0%00
Oct0%00
Nov0%00
Dec0%00

Show Centimeters

MonthDaily Chance of RainAverage Snow Depth (cm)Total Precipitation (cm)
Jan000
Feb000
Mar000
Apr000
May100.5
Jun000
Jul000
Aug000
Sep000
Oct000
Nov000
Dec000

 

Humidity and Wind

Rosemead has some months with regular humidity, with some very dry months. The least humid month is July (18.9% relative humidity), and the most humid month is February (37.7%).

Wind in Rosemead is usually calm. The windiest month is February, followed by April and March. February’s average wind speed of around 4.7 knots (5.4 MPH or 8.8 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in mid February where average top sustained speeds reach 11.6 knots, which is considered a moderate breeze.

Relative Humidity (%)

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

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.

MonthAvg. WindAvg. Wind FeelSustained High WindHigh Wind Feel
Jan4.3Light breeze9.8Gentle breeze
Feb4.7Light breeze10.6Gentle breeze
Mar4.5Light breeze10.2Gentle breeze
Apr4.5Light breeze10.6Gentle breeze
May3.9Barely noticeable10.2Gentle breeze
Jun3.4Barely noticeable8.4Gentle breeze
Jul3.1Barely noticeable8.5Gentle breeze
Aug3.3Barely noticeable8.7Gentle breeze
Sep4Light breeze10.1Gentle breeze
Oct3.7Barely noticeable9.9Gentle breeze
Nov4.3Light breeze9.4Gentle breeze
Dec4.4Light breeze10.1Gentle breeze

Show Relative Humidity by Month

MonthAvg. Relative Humidity
Jan27.6%
Feb37.7%
Mar31.6%
Apr33.8%
May30.6%
Jun20.6%
Jul18.9%
Aug18.9%
Sep22.5%
Oct25.3%
Nov28.1%
Dec34.9%

 

Is it Safe to Travel to Rosemead?

Our best data indicates this area is generally safe. As of Oct 07, 2019 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 Sep 23, 2019.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Rosemead, CA, US is July, followed by August and June. 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 Rosemead in December. 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 slightly extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 47.6 in December means 47.6% of the tourists vs. July.

 

 

Overall Rosemead Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 73.1°F (22.8°C) and 54.6°F (12.6°C) with warmer temperatures in the later months. Rain is nonexistent with roughly 0 days of significant precipitation per month. Spring is the slowest for tourism, which makes it a good time for those looking for deals.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see the least precipitation with about 0 days of precipitation per month. June – August is the busiest season for tourism in Rosemead, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 84.1°F (28.9°C) and 58.9°F (14.9°C), which will feel comfortable given the humidity and wind. It rains or snows a trivial amount: approximately 0 days per month. Tourism is the second busiest during these months due to the weather, so hotels may be slightly higher priced.

Winter (December through February)

Weather is too cold this time of year in Rosemead to be enjoyable for warm weather travelers. The average high during this season is between 59.7°F (15.4°C) and 51.3°F (10.7°C). On average, it rains or snows a insignificant amount: consistently 0 times per month. These times of year are fairly slow with tourists.

 

Best Times to Travelthe United States › Rosemead, CA, US