2024 Compare Climate & Weather:
Castle Rock, CO vs Harrisburg, PA
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Highlights
On average, there are 193 sunny days per year in Harrisburg. Castle Rock averages 243 sunny days per year. The US average is 205 sunny days.
Harrisburg, Pennsylvania gets 41.8 inches of rain, on average, per year. Castle Rock, Colorado gets 18.6 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.
Harrisburg averages 25.8 inches of snow per year. Castle Rock averages 78.3 inches of snow per year. The US average is 27.8 inches of snow per year.
Weather Highlights
Harrisburg, Pennsylvania
Summer High: the July high is around 85.1 degrees
Winter Low: the January low is 22.4
Rain: averages 41.8 inches of rain a year
Snow: averages 25.8 inches of snow a year
Castle Rock, Colorado
Summer High: the July high is around 85.5 degrees
Winter Low: the January low is 18.6
Rain: averages 18.6 inches of rain a year
Snow: averages 78.3 inches of snow a year
BESTPLACES COMFORT INDEX
HarrisburgThe annual BestPlaces Comfort Index for Harrisburg is 7.2 (10=best), which means it is one of the most pleasant places in Pennsylvania.
7.2 / 10
June, September and August are the most pleasant months in Harrisburg, while January and February are the least comfortable months.
Castle RockThe annual BestPlaces Comfort Index for Castle Rock is 7.2 (10=best), which means it is more comfortable than most places in Colorado.
7.2 / 10
August, September and July are the most pleasant months in Castle Rock, while December and January are the least comfortable months.
Today's Weather - Castle Rock, CO
3 PM PST
Chance Showers And Thunderstorms
66°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| This Afternoon | Chance Showers And Thunderstorms | 70° / 36° | NNW 12 to 15 mph |
| Thursday | Sunny then Slight Chance Showers And Thunderstorms | 60° / 39° | ENE 6 to 13 mph |
| Friday | Mostly Sunny then Chance Showers And Thunderstorms | 65° / 35° | WSW 22 mph |
| Saturday | Mostly Sunny then Slight Chance Showers And Thunderstorms | 64° / 45° | SSE 7 to 20 mph |
| Sunday | Mostly Sunny then Slight Chance Showers And Thunderstorms | 74° / 46° | S 16 to 21 mph |
| Monday | Slight Chance Rain And Snow Showers then Slight Chance Showers And Thunderstorms | 62° / 40° | W 23 to 26 mph |
| Tuesday | Sunny then Slight Chance Showers And Thunderstorms | 63° / 38° | W 16 to 21 mph |
Today's Weather - Harrisburg, PA
3 PM PST
Mostly Clear
80°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Tonight | Mostly Clear | 57° / 87° | SW 1 to 6 mph |
| Thursday Night | Mostly Clear | 57° / 79° | N 7 mph |
| Friday Night | Mostly Cloudy then Slight Chance Rain Showers | 52° / 62° | SE 12 mph |
| Saturday Night | Rain Showers Likely | 52° / 62° | SE 12 to 15 mph |
| Sunday Night | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 56° / 75° | E 5 to 10 mph |
| Monday Night | Chance Showers And Thunderstorms | 57° / 78° | SW 7 mph |
| Tuesday Night | Chance Showers And Thunderstorms | 62° / 82° | S 10 mph |
Average Monthly High / Low (°F)
| Month | Castle Rock, CO | Harrisburg, PA |
|---|
| January | 45° / 19° | 37° / 22° |
| February | 46° / 20° | 41° / 24° |
| March | 53° / 26° | 50° / 32° |
| April | 60° / 32° | 62° / 41° |
| May | 69° / 41° | 72° / 51° |
| June | 79° / 50° | 81° / 61° |
| July | 86° / 56° | 85° / 65° |
| August | 83° / 55° | 83° / 64° |
| September | 76° / 47° | 75° / 56° |
| October | 65° / 36° | 64° / 44° |
| November | 52° / 26° | 53° / 35° |
| December | 44° / 18° | 41° / 27° |
Hot, Freezing, Rainy, Snowy Days: Castle Rock / Harrisburg
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 29 / 27 | 3 / 10 | 4 / 5 |
| February | 0 / 0 | 25 / 23 | 4 / 9 | 4 / 4 |
| March | 0 / 0 | 23 / 16 | 6 / 10 | 5 / 2 |
| April | 0 / 0 | 15 / 3 | 6 / 12 | 4 / 1 |
| May | 0 / 1 | 3 / 0 | 9 / 13 | 1 / 0 |
| June | 2 / 3 | 0 / 0 | 8 / 11 | 0 / 0 |
| July | 8 / 6 | 0 / 0 | 8 / 11 | 0 / 0 |
| August | 4 / 4 | 0 / 0 | 10 / 10 | 0 / 0 |
| September | 1 / 1 | 1 / 0 | 6 / 9 | 0 / 0 |
| October | 0 / 0 | 10 / 2 | 4 / 9 | 1 / 0 |
| November | 0 / 0 | 22 / 11 | 4 / 10 | 4 / 1 |
| December | 0 / 0 | 28 / 24 | 4 / 10 | 4 / 3 |
July is the hottest month for Castle Rock with an average high temperature of 85.5°, which ranks it as about average compared to other places in Colorado. In Castle Rock, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Castle Rock are June, September and August.
July is the hottest month for Harrisburg with an average high temperature of 85.1°, which ranks it as warmer than most places in Pennsylvania. In Harrisburg, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Harrisburg are September, June and August.
December has the coldest nighttime temperatures for Castle Rock with an average of 18.1°. This is one of the warmest places in Colorado.
January has the coldest nighttime temperatures for Harrisburg with an average of 22.4°. This is one of the warmest places in Pennsylvania.
In Castle Rock, there are 14.9 days annually when the high temperature is over 90°, which is cooler than most places in Colorado.
In Harrisburg, there are 13.8 days annually when the high temperature is over 90°, which is hotter than most places in Pennsylvania.
In Castle Rock, there are 156.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.
In Harrisburg, there are 105.1 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Pennsylvania.
In Castle Rock, there are 5.6 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.
In Harrisburg, there are 0.5 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Pennsylvania.
August is the wettest month in Castle Rock with 2.6 inches of rain, and the driest month is January with 0.6 inches. The wettest season is Autumn with 40% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 18.6 inches in Castle Rock means that it is wetter than most places in Colorado.
July is the wettest month in Harrisburg with 4.2 inches of rain, and the driest month is February with 2.7 inches. The wettest season is Autumn with 28% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 41.8 inches in Harrisburg means that it is drier than most places in Pennsylvania.
August is the rainiest month in Castle Rock with 9.9 days of rain, and January is the driest month with only 3.3 rainy days. There are 70.0 rainy days annually in Castle Rock, which is less rainy than most places in Colorado. The rainiest season is Autumn when it rains 37% of the time and the driest is Spring with only a 15% chance of a rainy day.
May is the rainiest month in Harrisburg with 12.6 days of rain, and September is the driest month with only 8.9 rainy days. There are 122.4 rainy days annually in Harrisburg, which is less rainy than most places in Pennsylvania. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.
An annual snowfall of 78.3 inches in Castle Rock means that it is snowier than most places in Colorado.
An annual snowfall of 25.8 inches in Harrisburg means that it is less snowy than most places in Pennsylvania.
March is the snowiest month in Castle Rock with 16.8 inches of snow, and 9 months of the year have significant snowfall.
February is the snowiest month in Harrisburg with 8.3 inches of snow, and 6 months of the year have significant snowfall.
DID YOU KNOW?
Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.
Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.
Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.
Reviews for Castle Rock 
2 Reviews
Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More
Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More
Start Your Review of Castle Rock
Reviews for Harrisburg 2 Reviews
Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More
Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More
Start Your Review of Harrisburg
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