Boulder, CO Monthly Means: Temperature

Units are degrees Fahrenheit

Year JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DECAverage
189728.3*32.3*36.4*48.0*60.264.670.669.066.852.241.830.6X
189830.738.835.749.251.966.672.273.062.149.036.629.3 49.6
189931.618.034.149.157.065.969.070.466.050.547.735.8 49.6
190037.031.643.245.859.869.670.772.261.657.244.638.9 52.7
190136.429.440.047.159.566.075.271.361.453.647.835.0 51.9
190232.138.039.148.859.266.869.271.860.855.042.036.5 51.6
190337.422.837.148.354.561.271.070.661.052.942.839.8 50.0
190432.441.443.649.455.461.267.870.264.454.848.437.6 52.2
190529.427.044.546.452.566.068.072.466.048.643.936.2 50.1
190639.037.629.850.357.463.067.068.962.151.938.641.3 50.6
190734.242.848.246.850.863.870.270.663.954.240.936.8 51.9
190837.438.045.852.554.664.069.467.666.349.040.034.3 51.6
190937.635.033.941.953.865.271.272.362.253.943.819.9 49.2
191030.630.254.054.855.866.873.7*70.2*63.254.545.835.6X
191138.630.845.649.258.168.968.669.364.447.637.034.5*X
191233.131.132.045.056.062.868.369.454.850.042.931.4 48.1
191329.324.135.350.956.067.464.771.658.547.545.126.7 48.1
191437.731.441.648.857.468.470.870.065.854.447.624.5 51.5
191530.036.332.852.054.463.068.265.261.655.044.233.8 49.7
191625.437.048.650.659.269.276.569.263.550.237.626.6 51.1
191729.434.432.945.350.668.676.871.365.250.347.939.0 51.0
191826.237.647.944.261.471.074.675.461.455.037.832.6 52.1
191936.432.440.550.358.568.576.976.268.452.035.833.2 52.4
192035.633.739.039.855.763.870.767.861.652.336.233.1 49.1
192134.337.445.546.056.866.271.670.464.357.244.436.2 52.5
192226.431.040.645.757.670.470.672.666.752.837.736.1 50.7
192338.229.033.647.255.466.870.467.059.843.641.832.3 48.8
192429.840.929.147.954.268.572.074.057.452.043.824.8 49.5
192530.541.044.151.558.665.973.268.463.241.540.232.1 50.9
192631.439.037.846.557.865.470.471.261.055.243.030.9 50.8
192736.338.437.049.359.263.469.465.461.054.444.726.6 50.4
192836.332.739.645.956.860.469.269.063.051.638.231.6 49.5
192926.523.340.047.055.667.473.672.358.652.632.637.5 48.9
193016.441.837.655.655.469.273.069.663.049.941.432.4 50.4
193135.438.437.248.255.570.274.971.666.654.238.134.7 52.1
193229.739.632.850.659.264.872.871.363.249.643.422.8 50.0
193336.329.043.646.254.871.875.469.466.557.446.443.8 53.4
193439.037.845.551.764.270.176.672.760.957.144.436.8 54.7
193538.738.043.045.749.464.873.271.363.251.336.633.8 50.8
193632.026.441.850.059.869.175.272.063.649.242.535.2 51.4
193718.032.737.947.858.263.672.473.965.053.240.432.6 49.6
193833.735.641.348.553.465.871.372.664.453.935.632.1 50.7
193934.625.941.448.759.566.373.568.663.451.441.439.2 51.2
194023.434.442.645.557.868.371.568.261.252.834.732.2 49.4
194132.134.733.942.657.762.269.267.257.247.642.233.9 48.4
194228.523.835.949.154.463.772.269.860.249.442.737.2 48.9
194333.839.735.554.352.465.473.672.961.452.841.934.0 51.5
194431.831.833.242.156.764.168.970.661.653.441.732.5 49.0
194533.633.440.641.456.060.370.870.458.854.442.831.2 49.5
194632.837.445.355.051.267.272.069.261.947.837.038.4 51.3
194732.631.236.546.455.062.074.175.869.457.634.937.0 51.0
194831.031.035.253.260.168.275.275.069.755.039.933.3 52.2
194921.934.142.153.360.467.775.073.766.551.353.137.0 53.0
195032.942.241.249.855.569.371.471.962.062.042.540.2 53.4
195131.537.937.546.759.362.474.972.063.551.640.631.8 50.8
195236.038.136.351.058.774.775.972.568.657.337.236.4 53.6
195343.536.846.145.255.371.975.873.669.857.646.135.5 54.8
195439.847.637.255.958.371.578.375.068.051.547.539.7 55.9
195531.029.938.452.860.665.176.675.066.657.038.937.0 52.4
195637.430.942.749.262.075.074.272.069.458.441.339.8 54.4
195727.642.140.743.655.167.975.873.663.452.540.344.1 52.2
195837.039.733.546.464.370.371.774.865.856.242.637.3 53.3
195932.631.640.547.057.170.671.973.060.449.640.639.0 51.2
196031.328.440.352.359.671.074.673.966.454.543.935.5 52.6
196136.939.940.048.258.967.772.972.557.552.837.930.3 51.3
196225.334.737.152.861.566.572.173.163.657.545.837.9 52.3
196323.540.941.251.962.469.977.071.068.360.144.133.3 53.6
196435.432.036.248.861.066.577.071.464.455.841.836.4 52.2
196538.432.730.852.058.566.573.070.755.957.945.738.5 51.7
196631.431.346.348.563.567.577.771.654.553.643.234.1 51.9
196736.637.946.451.055.462.273.070.663.855.641.528.2 51.9
196833.736.644.645.855.669.772.670.063.355.338.532.7 51.5
196936.336.634.753.961.362.275.374.366.241.841.836.4 51.7
197033.940.936.845.160.966.073.473.560.947.641.635.7 51.4
197134.832.940.247.954.569.171.572.258.950.741.232.9 50.6
197232.740.247.549.656.968.169.969.062.051.634.027.9 50.8
197329.234.838.943.155.967.870.072.759.454.939.635.2 50.1
197428.737.344.047.661.368.073.368.760.254.239.932.7 51.3
197533.032.839.344.754.864.372.171.260.855.139.338.0 50.5
197632.541.438.549.256.466.373.269.760.849.439.336.6 51.1
197728.239.039.549.559.671.273.768.665.553.841.638.0 50.5
197827.229.843.349.255.766.273.769.565.054.040.229.1 50.2
197922.637.442.650.154.765.973.867.964.956.135.138.9 50.8
198029.536.538.947.755.671.774.771.965.752.643.844.1 52.7
198129.029.342.256.755.169.171.768.764.550.746.236.9 51.7
198233.735.543.950.155.962.371.872.661.450.539.235.5 51.0
198338.141.838.743.553.162.672.474.865.453.740.520.7 50.4
198429.835.840.143.860.565.673.571.561.045.840.833.9 50.2
198526.829.541.652.059.768.672.272.559.550.431.131.8 49.6
198642.337.648.850.756.969.271.670.759.350.340.733.5 52.6
198734.337.039.852.559.068.672.769.061.752.841.030.8 51.6
198828.935.840.951.659.370.972.871.9X54.841.632.8X
198936.524.144.9XXXXXXXXXX
1990XXX48.054.570.068.668.864.753.745.227.3X
199129.940.942.847.858.266.670.569.261.752.136.835.351.0
199235.940.643.354.359.162.968.366.364.454.134.129.251.0
199328.330.642.447.657.564.569.567.358.848.735.635.448.9
199435.531.943.947.660.870.071.270.965.050.636.636.151.7
199534.538.342.145.150.962.470.574.060.450.545.036.350.8
199629.737.737.950.458.966.971.569.560.853.140.636.551.1
199731.332.845.542.857.466.571.468.764.052.737.933.950.4
199836.536.438.746.558.862.172.870.767.150.444.032.251.4
199936.442.146.044.555.664.873.569.358.551.948.036.952.3
200036.441.042.951.261.067.474.773.063.149.631.431.251.9
200133.032.340.850.758.468.975.071.865.053.843.935.052.4
200233.136.037.552.956.270.576.871.364.045.940.336.651.8
200340.231.643.750.657.462.875.972.960.557.439.036.453.4
200435.433.648.249.259.962.769.266.462.951.939.736.551.3
200535.537.942.048.457.665.475.169.766.252.645.033.352.4
200640.733.739.453.961.071.674.471.658.451.043.435.352.9
200727.234.647.647.958.067.774.873.764.555.244.930.252.2
200831.636.140.847.857.166.175.069.660.946.046.031.150.7
200938.239.744.347.359.363.069.669.663.144.543.826.750.8
201033.030.142.748.853.966.972.572.466.655.039.837.250.8
201133.132.045.248.953.767.673.575.163.452.942.332.251.7
201238.932.350.854.360.274.274.873.266.050.846.133.754.6
201333.032.140.543.857.769.972.272.265.147.843.231.550.8
201434.632.043.649.856.666.272.269.263.855.338.333.951.3
201536.536.646.150.152.468.370.370.569.456.240.833.152.5
201634.140.943.049.054.170.574.070.464.958.847.532.053.3
201732.242.350.348.955.768.773.969.063.551.547.536.453.3
201837.732.543.449.159.769.972.570.966.750.439.433.852.1
201934.931.037.250.251.264.673.173.867.645.739.135.750.3
202036.232.443.047.659.069.373.874.264.750.944.835.952.7
202134.628.040.446.755.369.473.072.167.553.648.040.4
202233.930.741.749.057.168.374.972.867.053.335.932.0
202330.134.336.948.157.763.372.671.965.451.644.638.3
202430.238.941.950.856.271.173.573.267.658.140.9

1991-2020 Climatology (at NIST)

Type JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DECAvg
Mean34.42 35.40 43.13 48.87 57.22 66.95 72.72 70.91 63.66 51.78 41.48 33.9851.71
STD 3.23 3.49 3.39 2.70 2.68 3.01 2.16 2.29 2.67 3.27 4.03 2.52--

Data was obtained from GCPS (1893-1987) and the local station report. *'d values from a slightly different source
Page Last Reviewed: Nov 1, 2024