The best times to visit Norco for ideal weather are
April 23rd to July 8th
Norco Travel Guide
Other Norco Travel Info
Weather in Norco
Average temperatures in Norco vary greatly. Considering humidity, temperatures feel nice most of the year, excluding some cold weeks in the winter, with a very low chance of rain or snow throughout the year. The area is somewhat temperate — in the 56th 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 Norco, the hottest months are August, July, and then September. See average monthly temperatures below. The warmest time of year is generally late August to early September where highs are regularly around 95.5°F (35.3°C) with temperatures rarely dropping below 60.1°F (15.6°C) at night.
Norco Temperatures (Fahrenheit)
Norco Temperatures (Celsius)
Norco Perceived Temperature (F)
Norco Perceived Temperature (C)
Average Norco Temperatures by Month
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Norco are August, September, and then July. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late May to early June. For example, on the week of May 28th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid October with an average of 1 days of significant precipitation the week of October 8th.
When can you find snow in Norco? 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 Norco.
Snow on the Ground
The graph below shows the average snow on the ground in Norco (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Norco has some comfortably humid months, with slightly drier months on the other side of the year. The least humid month is January (42.5% relative humidity), and the most humid month is June (55%).
Wind in Norco is usually calm. The windiest month is May, followed by August and July. May’s average wind speed of around 5.4 knots (6.2 MPH or 9.9 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 early May where average top sustained speeds reach 14.8 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Norco.
The graph below shows wind speed (max and average) in knots.
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||4.6||Light breeze||12.2||Significant breeze|
|Feb||3.7||Barely noticeable||11.2||Significant breeze|
|Mar||4.3||Light breeze||12.5||Significant breeze|
|Apr||5||Light breeze||13.5||Significant breeze|
|May||5.4||Light breeze||14||Significant breeze|
|Jun||5.1||Light breeze||14||Significant breeze|
|Jul||5.1||Light breeze||14||Significant breeze|
|Aug||5.3||Light breeze||13.6||Significant breeze|
|Sep||4.3||Light breeze||12.7||Significant breeze|
|Oct||3.9||Barely noticeable||11.5||Significant breeze|
|Nov||3.7||Barely noticeable||10.7||Significant breeze|
|Dec||3.4||Barely noticeable||10.6||Gentle breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Norco?
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 Norco, CA, US is July, followed by September 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 Norco in November. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Norco Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderate. Highs range from 82.3°F (27.9°C) and 71.2°F (21.8°C) with warmer temperatures in the later months. Rain is rare with 1 to 2 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 quite warm. These months see the least precipitation with 0 to 1 days of precipitation per month. June – August is the busiest season for tourism in Norco, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 94.4°F (34.7°C) and 73.5°F (23.1°C), which will feel comfortable given the humidity and wind. It rains or snows a normal amount: 0 to 3 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.
Winter (December through February)
Weather is too cold this time of year in Norco to be enjoyable for warm weather travelers. The average high during this season is between 73.4°F (23°C) and 66.2°F (19°C). On average, it rains or snows a smalll amount: 3 to 4 times per month. These times of year are the slowest with tourists.