2025 Compare Climate & Weather:
Rolla, MO vs Lancaster, CA

Highlights

On average, there are 281 sunny days per year in Lancaster. Rolla averages 193 sunny days per year. The US average is 205 sunny days.

Lancaster, California gets 7.7 inches of rain, on average, per year. Rolla, Missouri gets 46.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Lancaster averages 0.9 inches of snow per year. Rolla averages 12.8 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Lancaster, California
Summer High: the July high is around 97.7 degrees
Winter Low: the January low is 32.1
Rain: averages 7.7 inches of rain a year
Snow: averages 0.9 inches of snow a year

Rolla, Missouri
Summer High: the July high is around 88.1 degrees
Winter Low: the January low is 20.8
Rain: averages 46.4 inches of rain a year
Snow: averages 12.8 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Lancaster is 8.0 (10=best), which means it is less comfortable than most places in California.

The annual BestPlaces Comfort Index for Rolla is 7.2 (10=best), which means it is more comfortable than most places in Missouri.

Today's Weather - Rolla, MO

60°F

Today's Weather - Lancaster, CA

61°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Rolla / Lancaster

July is the hottest month for Rolla with an average high temperature of 88.1°, which ranks it as about average compared to other places in Missouri. In Rolla, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rolla are September, May and June.

July is the hottest month for Lancaster with an average high temperature of 97.7°, which ranks it as warmer than most places in California. In Lancaster, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Lancaster are October, April and May.

January has the coldest nighttime temperatures for Rolla with an average of 20.8°. This is about average compared to other places in Missouri.

December has the coldest nighttime temperatures for Lancaster with an average of 31.3°. This is colder than most places in California.

In Rolla, there are 29.9 days annually when the high temperature is over 90°, which is cooler than most places in Missouri.

In Lancaster, there are 106.9 days annually when the high temperature is over 90°, which is one of the hottest places in California.

In Rolla, there are 102.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Missouri.

In Lancaster, there are 53.2 days annually when the nighttime low temperature falls below freezing, which is colder than most places in California.

In Rolla, there are 2.6 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Missouri.

In Lancaster, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

May is the wettest month in Rolla with 5.2 inches of rain, and the driest month is January with 2.4 inches. The wettest season is Summer with 29% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 46.4 inches in Rolla means that it is wetter than most places in Missouri.


February is the wettest month in Lancaster with 1.8 inches of rain, and the driest month is May with 0.1 inches. The wettest season is Spring with 58% of yearly precipitation and 4% occurs in Autumn, which is the driest season. The annual rainfall of 7.7 inches in Lancaster means that it is one of the driest places in California.

May is the rainiest month in Rolla with 12.6 days of rain, and September is the driest month with only 7.9 rainy days. There are 115.1 rainy days annually in Rolla, which is one of the rainiest places in Missouri. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 22% chance of a rainy day.

February is the rainiest month in Lancaster with 5.7 days of rain, and June is the driest month with only 0.4 rainy days. There are 31.5 rainy days annually in Lancaster, which is one of the least rainy places in California. The rainiest season is Spring when it rains 49% of the time and the driest is Autumn with only a 5% chance of a rainy day.

An annual snowfall of 12.8 inches in Rolla means that it is about average compared to other places in Missouri.

An annual snowfall of 0.9 inches in Lancaster means that it is snowier than most places in California.

January is the snowiest month in Rolla with 4.0 inches of snow, and 5 months of the year have significant snowfall.

December is the snowiest month in Lancaster with 0.5 inches of snow, and 1 month of the year have significant snowfall.