What’s the climate like in Fullerton?
The current climate of Fullerton features average monthly temperatures ranging from highs of 34°C during the day to lows of 17°C. The average yearly temperature is around 27°C. At night, temperatures in the colder months average around 4°C and in the warmer months around 23°C.
The highest temperature recorded in Fullerton in recent years was 42°C in August 2023. The lowest daytime temperature recorded was -3°C in December 2022.
On average, Fullerton gets 2482 mm of precipitation each year. Of this, about 1,0 cm is snowfall. For comparison, London gets 701 mm of precipitation each year.
The hurricane season in Fullerton runs from June to November.
Best time to visit Fullerton?
The best time to visit Fullerton for pleasant to warm weather is January through March, May through September, November and December. There might be some rain during this period, but the temperatures are just right for exploring Fullerton.
Climate Table of Fullerton
The climate table of Fullerton shows the average temperatures, precipitation, snow, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 17 | 19 | 23 | 26 | 30 | 33 | 34 | 34 | 32 | 28 | 22 | 19 |
| Temp. min (°C) | 5 | 7 | 12 | 15 | 19 | 23 | 24 | 23 | 21 | 15 | 10 | 8 |
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| Precipitation (mm) | 166 | 130 | 235 | 333 | 191 | 192 | 228 | 242 | 104 | 305 | 157 | 199 |
| Snow (cm) | 0,4 | 0,1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0,5 |
| UV Index | 5 | 5 | 7 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 5 | 4 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 27°C
- Highest temperature: 34°C in July and August
- Lowest temperature: 17°C in January
- Precipitation*: 2482 mm per year, averaging 207 mm per month
- Snowfall: 1,0 cm per year
- Driest months: 104 mm in September, 130 mm in February and 157 mm in November
- Wettest months: 333 mm in April, 305 mm in October and 242 mm in August
*Precipitation is measured as a combination of rain, snow, and hail
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Table of Contents
Average Temperature per Month in Fullerton
This graph shows the average maximum temperatures per month in Fullerton, Louisiana. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Fullerton
This graph shows how much precipitation Fullerton, Louisiana, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average Snowfall per Month in Fullerton
This graph shows how much snow Fullerton, Louisiana, gets on average per month. The amount of snowfall is measured in centimetres and the average is calculated based on the recorded snowfall per month from past years.
Average UV Index per Month in Fullerton
This graph shows the average UV index per month in Fullerton, Louisiana. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Fullerton
This graph shows the average yearly temperature in Fullerton, Louisiana. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Fullerton
This chart shows the total yearly precipitation in Fullerton, Louisiana, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Total Yearly Snowfall in Fullerton
This chart shows the total yearly snowfall in Fullerton, Louisiana, over the past few years. The total yearly snowfall, measured in centimetres, is the sum of all the snow that fell in the twelve months of that year.
Weather experiences in Fullerton
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Average Weather in Fullerton by Month
Click on a month below to see detailed weather info for Fullerton. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
