Average Weather at San Luis Valley Regional Airport Colorado, United States
At San Luis Valley Regional Airport, the summers are warm and dry, the winters are freezing and snowy, and it is mostly clear year round. Over the course of the year, the temperature typically varies from 3°F to 82°F and is rarely below -10°F or above 88°F.
Based on the tourism score, the best time of year to visit San Luis Valley Regional Airport for warm-weather activities is from mid June to mid August.
The warm season lasts for 3.7 months, from May 27 to September 18, with an average daily high temperature above 72°F. The hottest day of the year is July 8, with an average high of 82°F and low of 48°F.
The cold season lasts for 3.0 months, from November 24 to February 23, with an average daily high temperature below 44°F. The coldest day of the year is January 8, with an average low of 3°F and high of 35°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
Pasinler, Turkey (6,713 miles away); Fareydūnshahr, Iran (7,342 miles); and Xining, China (7,031 miles) are the far-away foreign places with temperatures most similar to San Luis Valley Regional Airport (view comparison).
At San Luis Valley Regional Airport, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.
The clearer part of the year at San Luis Valley Regional Airport begins around September 3 and lasts for 2.1 months, ending around November 7. On September 29, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 80% of the time, and overcast or mostly cloudy 20% of the time.
The cloudier part of the year begins around November 7 and lasts for 9.9 months, ending around September 3. On February 15, the cloudiest day of the year, the sky is overcast or mostly cloudy 39% of the time, and clear, mostly clear, or partly cloudy 61% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at San Luis Valley Regional Airport varies throughout the year.
The wetter season lasts 2.0 months, from July 9 to September 10, with a greater than 20% chance of a given day being a wet day. The chance of a wet day peaks at 31% on August 10.
The drier season lasts 10 months, from September 10 to July 9. The smallest chance of a wet day is 9% on January 26.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation at San Luis Valley Regional Airport changes throughout the year.
Rain alone is the most common for 8.1 months, from March 16 to November 18. The highest chance of a day with rain alone is 31% on August 10.
Snow alone is the most common for 2.8 months, from November 22 to February 15. The highest chance of a day with snow alone is 7% on January 5.
Mixed snow and rain is the most common for 1.1 months, from February 15 to March 16 and from November 18 to November 22. The highest chance of a day with mixed snow and rain is 7% on March 14.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. San Luis Valley Regional Airport experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 7.3 months, from March 29 to November 8, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around August 5, with an average total accumulation of 1.3 inches.
The rainless period of the year lasts for 4.6 months, from November 8 to March 29. The least rain falls around January 16, with an average total accumulation of 0.1 inches.
Average Monthly Rainfall
We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.
As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. San Luis Valley Regional Airport experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 6.7 months, from October 15 to May 5, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around December 17, with an average total liquid-equivalent accumulation of 0.4 inches.
The snowless period of the year lasts for 5.3 months, from May 5 to October 15. The least snow falls around July 27, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day at San Luis Valley Regional Airport varies significantly over the course of the year. In 2018, the shortest day is December 21, with 9 hours, 35 minutes of daylight; the longest day is June 21, with 14 hours, 45 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:41 AM on June 13, and the latest sunrise is 1 hour, 48 minutes later at 7:30 AM on November 3. The earliest sunset is at 4:45 PM on December 6, and the latest sunset is 3 hours, 43 minutes later at 8:28 PM on June 28.
Daylight saving time (DST) is observed at San Luis Valley Regional Airport during 2018, starting in the spring on March 11, lasting 7.8 months, and ending in the fall on November 4.
Sunrise & Sunset with Twilight and Daylight Saving Time
The perceived humidity level at San Luis Valley Regional Airport, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.
Humidity Comfort Levels
The average hourly wind speed at San Luis Valley Regional Airport experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 7.8 months, from October 25 to June 19, with average wind speeds of more than 7.3 miles per hour. The windiest day of the year is April 11, with an average hourly wind speed of 9.5 miles per hour.
The calmer time of year lasts for 4.2 months, from June 19 to October 25. The calmest day of the year is August 2, with an average hourly wind speed of 5.2 miles per hour.
Average Wind Speed
The predominant average hourly wind direction at San Luis Valley Regional Airport is from the west throughout the year.
Best Time of Year to Visit
To characterize how pleasant the weather is at San Luis Valley Regional Airport throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit San Luis Valley Regional Airport for general outdoor tourist activities is from mid June to mid August, with a peak score in the third week of July.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit San Luis Valley Regional Airport for hot-weather activities is from late June to late July, with a peak score in the first week of July.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
The growing season at San Luis Valley Regional Airport typically lasts for 3.6 months (110 days), from around June 2 to around September 19, rarely starting before May 11 or after June 21, and rarely ending before September 3 or after October 6.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms at San Luis Valley Regional Airport should appear around April 25, only rarely appearing before April 12 or after May 7.
Growing Degree Days
The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 2.6 months, from May 2 to July 21, with an average daily incident shortwave energy per square meter above 7.3 kWh. The brightest day of the year is June 12, with an average of 8.4 kWh.
The darker period of the year lasts for 3.2 months, from November 3 to February 9, with an average daily incident shortwave energy per square meter below 4.0 kWh. The darkest day of the year is December 22, with an average of 2.9 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of San Luis Valley Regional Airport are 37.435 deg latitude, -105.867 deg longitude, and 7,536 ft elevation.
The topography within 2 miles of San Luis Valley Regional Airport is essentially flat, with a maximum elevation change of 20 feet and an average elevation above sea level of 7,535 feet. Within 10 miles is essentially flat (131 feet). Within 50 miles contains only modest variations in elevation (7,772 feet).
The area within 2 miles of San Luis Valley Regional Airport is covered by shrubs (70%) and cropland (18%), within 10 miles by shrubs (50%) and cropland (33%), and within 50 miles by shrubs (48%) and trees (32%).
This report illustrates the typical weather at San Luis Valley Regional Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
San Luis Valley Regional Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.
In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.
The stations on which we may fall back include but are not limited to La Veta Mountain, La Veta Pass; Saguache Municipal Airport; Pagosa Springs, Wolf Creek Pass; Taos Regional Airport; Harriet Alexander Field Airport; Salida Mountain, Monarch Pass; Angel Fire Airport; and Stevens Field.
Time zones for aiports and weather stations are provided by AskGeo.com .