The Weather at the Observatory

DRESS WARMLY!!! Temperatures vary quite a bit at our elevation (6,300-6,800 feet above sea level) and are usually much cooler than other areas of Texas. For summer make sure you bring a light jacket and long pants. For Fall, Winter, and early Spring programs, layer your attire and bring a warm coat, thermals, gloves, and something to keep your head warm.

Monthly Weather Averages, 1935-1997, are listed below. Please note that low and high temperatures are averages; therefore, the low temperature on a particular night can be much lower (20's or teens in winter for example):

Month High Temp (F) Low Temp (F) Rain (in) Snow (in)
Jan 53 32 0.72 1.8
Feb 57 34 0.49 0.4
Mar 63 38 0.4 0.1
Apr 71 45 0.52 0
May 78 52 1.72 0
Jun 84 58 2.49 0
Jul 82 59 3.83 0
Aug 81 58 3.71 0
Sep 76 54 3.11 0
Oct 70 48 1.65 0
Nov 61 38 1.70 0.4
Dec 54 33 0.65 1.0

Source: NOAA

If you're coming out soon, you may want to check out the current weather conditions here at the Observatory.

While we wish we could forecast the weather at the time of your visit, it is just too unpredictable. However, here are a few of our favorite weather related web sites that may help:

National Weather Service
7-day forecast specifically for the McDonald Observatory. 

Weather Underground Forecasts
Extended forecasts for Fort Davis including maps, satellite links, and hourly forecast break-downs. 

Accuweather Forecasts
Extended forecasts for the area surrounding the Observatory including hourly forecast break-downs.

HODAR - McDonald Observatory
A collection of various weather information specifically for McDonald Observatory and the Fort Davis area.

Real-Time Weather Data Satellite Page
Current visible, infrared, and water vapor satellite images.

COLA/IGES Weather & Climate Images
Current weather and forecasts for the United States, Europe and the tropics.

A view from Mount Locke on a snowy, frosty day.