PlainClimate
NOAA 1991–2020 normals 50°F annual avg Public-domain federal data

Roxborough SP, CO Climate

Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →

50°F
Avg annual temp
64/100
Comfort score
20.9"
Annual precip
138d
Growing season

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for Roxborough SP

Roxborough SP, Colorado averages 50°F a year and scores 64/100 on the comfort index - good, milder than 51% of U.S. cities.

50°F
annual average temperature (NOAA normal)
64/100
comfort score, milder than 51% of U.S. cities
20.9"
annual precipitation
138 days
frost-free days per growing season

Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.

Avg Temperature

50°F (10°C)

Avg High

63°F

Avg Low

36°F

Annual Precip

20.9"

Comfort Score

64/100

Good

Climate Comfort Score

64/100

Good

Avg Annual Temperature

50°F

30-year mean (NOAA NCEI)

Annual Precipitation

20.9"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Roxborough SP) 64.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Roxborough SP area.

How Roxborough SP compares to every U.S. city

Roxborough SP's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

64 Top 49% higher than 51% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). Below this entry. 40–50: 1,302 US cities (19%). Below this entry. 50–60: 1,433 US cities (21%). Below this entry. 60–70: 1,357 US cities (20%). This entry sits in this band. 70–80: 1,102 US cities (16%). Above this entry. 80–90: 778 US cities (11%). Above this entry. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020

Warming context for Roxborough SP

Methodology

Since 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Roxborough SP's current NOAA 1991-2020 normal sits within that longer spread, and the most recent decade runs warmer than the 30-year mean.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • United States land mean (NOAA NCEI) +0.11 °C/decade
  • Global anomaly (NASA GISTEMP) +0.11 °C/decade
  • Paris Agreement thresholds 1.5°C / 2.0°C
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 46°F (8°C) 19°F (-7°C) 33°F (0°C)
February 46°F (8°C) 19°F (-7°C) 33°F (0°C)
March 54°F (12°C) 26°F (-3°C) 40°F (4°C)
April 59°F (15°C) 32°F (0°C) 46°F (8°C)
May 68°F (20°C) 41°F (5°C) 55°F (13°C)
June 79°F (26°C) 50°F (10°C) 65°F (18°C)
July 85°F (30°C) 58°F (15°C) 72°F (22°C)
August 83°F (29°C) 57°F (14°C) 70°F (21°C)
September 77°F (25°C) 48°F (9°C) 62°F (17°C)
October 65°F (18°C) 36°F (2°C) 50°F (10°C)
November 54°F (12°C) 26°F (-3°C) 40°F (4°C)
December 46°F (8°C) 18°F (-8°C) 32°F (0°C)

Monthly Precipitation

Average monthly rainfall

January 0.8"
February 1.0"
March 1.9"
April 2.8"
May 2.6"
June 2.1"
July 2.3"
August 2.3"
September 1.6"
October 1.4"
November 1.1"
December 0.9"

Frost Dates & Growing Season

First Fall Freeze

October 1

50% probability date

Last Spring Freeze

May 16

50% probability date

Growing Season

138 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

6,131

Higher = more heating needed

Cooling Degree Days

560

Higher = more cooling needed

Warmest Month

July

Coldest Month

December

What Roxborough SP's climate means for you

Roxborough SP runs 50°F a year - peaking in July, coldest in December.

  • Gardeners get about 138 frost-free days, with the last spring freeze near May 16 - plan the planting calendar around it, not the regional average.
  • Energy bills track 6,131 heating and 560 cooling degree days a year, higher means the furnace or AC runs more.
  • Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings

These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.

Climate Guides

Climate Insight: Roxborough SP, CO

In Roxborough SP, Colorado, the NOAA 1991–2020 climate normals put the annual average temperature at 50°F, ranging from a mean daily high of 63°F to a mean daily low of 36°F. July is typically the warmest month of the year, while December is the coldest. As thirty-year averages computed from station USC00057249, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Roxborough SP sees about 20.9 inches of precipitation a year, predominantly as rainfall. The frost-free season averages 138 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 16 and the first fall freeze near October 1. On the energy side, 6,131 heating degree days and 560 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Roxborough SP scores 64/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, July-driven heat peaks in summer, and December-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.

Frequently Asked Questions

What is the average temperature in Roxborough SP, CO?
The average annual temperature in Roxborough SP, Colorado is 50°F. The warmest month averages 85°F (30°C) and the coldest averages 18°F (-8°C).
How much rain does Roxborough SP get?
Roxborough SP receives 20.9 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Roxborough SP?
Roxborough SP has a climate comfort score of 64/100 (Good), milder than 51% of U.S. cities in the PlainClimate database.
When is the growing season in Roxborough SP?
Roxborough SP has approximately 138 frost-free days per year, with the last spring freeze around May 16 and the first fall freeze around October 1.
How much energy does heating and cooling require in Roxborough SP?
Roxborough SP has 6,131 heating degree days and 560 cooling degree days annually, a heating-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Roxborough SP climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00057249 near Roxborough SP.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00057249. For informational purposes only.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial

Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.