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   You are at NWS Houston/Galveston » SE TX Climate » Houston Climate» Extremes, Normals and Annual Summaries

Houston
Extremes, Normals and Annual Summaries

YEAR
2009 2008 2007 2006 2005 2004 2003 2002 2001 2000
EXTREMES...
Record High Temperature: 109 set on September 4, 2000
Record Low Temperature: 5 set on Jan 23, 1940 (Hobby Airport)
---Note: IAH record is 7 set on December 23, 1989---
Greatest one day rainfall: 14.58 inches set on August 27, 1945 (Hobby Airport)
---Note: IAH record is 10.34 inches set on June 26, 1989---

NORMALS (based on the 30 year period 1971-2000)...
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Rain Totals (in) 3.68 2.98 3.36 3.60 5.15 5.35 3.18 3.83 4.33 4.50 4.19 3.69 47.84
Mean Temp (°F) 51.8 55.4 62.3 68.5 75.8 81.3 83.6 83.3 78.9 70.4 60.9 53.7 68.8
Avg High (°F) 62.3 66.5 73.3 79.1 85.5 90.7 93.6 93.5 89.3 82.0 72.0 64.6 79.4
Avg Low (°F) 41.2 44.3 51.3 57.9 66.1 71.8 73.5 73.0 68.4 58.8 49.8 42.8 58.2
ANNUAL SUMMARY...
2009 Data Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Rain Totals (in) 0.49 1.52 4.08 10.38 16.47
Mean Temp (°F) 53.9 61.2 62.8 68.6 61.6
Avg High (°F) 66.5 72.4 73.2 78.6 72.7
Avg Low (°F) 41.4 50.0 52.5 58.6 50.6
ANNUAL SUMMARY...
2008 Data Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Rain Totals (in) 4.62 4.00 2.41 1.46 4.57 2.06 1.09 7.45 12.07 8.67 2.92 1.68 53.00
Mean Temp (°F) 52.2 60.1 63.6 69.4 77.8 84.5 84.9 84.0 78.2 69.5 62.4 55.6 70.2
Avg High (°F) 62.0 72.1 75.0 80.4 87.1 95.1 95.6 92.6 88.1 81.3 73.8 66.2 80.8
Avg Low (°F) 42.4 48.0 52.1 58.4 68.5 74.0 74.2 75.3 68.4 57.8 51.1 45.1 59.6
2007 Data Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Rain Totals (in) 5.72 1.15 6.40 3.86 9.88 3.07 9.94 8.05 3.05 6.85 5.49 2.06 65.52
Mean Temp (°F) 50.5 55.1 65.9 66.7 76.5 82.4 82.2 85.4 81.9 73.0 63.7 57.6 70.1
Avg High (°F) 58.4 66.1 76.0 76.9 85.3 90.9 89.7 94.4 91.5 84.4 73.9 69.4 79.7
Avg Low (°F) 42.6 44.2 55.8 56.5 67.6 74.0 74.6 76.4 72.2 61.6 53.5 45.9 60.4
2006 Data Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Rain Totals (in) 2.50 1.46 2.36 2.93 8.78 7.84 7.85 3.40 3.22 14.53 0.92 2.07 57.86
Mean Temp (°F) 58.9 55.5 65.6 73.6 76.7 81.3 83.3 84.9 79.4 72.4 62.7 55.7 70.8
Avg High (°F) 70.2 66.4 75.2 83.8 86.6 91.2 91.2 94.1 89.8 82.8 74.6 65.2 80.9
Avg Low (°F) 47.6 44.4 55.9 63.5 66.8 71.5 75.3 75.7 69.0 62.0 50.7 46.2 60.7
2005 Data Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Rain Totals (in) 3.41 6.10 4.05 1.28 6.06 0.08 5.30 1.52 2.63 1.69 2.72 6.37 41.21
Mean Temp (°F) 56.3 58.8 61.7 67.7 75.3 83.2 84.4 84.6 83.4 71.1 64.4 53.1 70.3
Avg High (°F) 65.2 66.2 72.0 78.3 85.9 93.4 93.7 94.1 93.2 83.3 75.4 64.0 80.4
Avg Low (°F) 47.3 51.3 51.4 57.1 64.7 73.0 75.2 75.1 78.9 67.3 53.5 42.1 61.4
2004
Data		 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Rain
Totals
(in)		 6.01 5.58 2.23 5.56 7.33 18.33 0.79 2.49 1.01 2.05 11.73 1.95 65.06
Mean
Temp
(°F)		 54.7 53.6 67.3 69.5 76.9 81.4 84.6 83.1 81.2 77.5 62.0 53.8 70.5
Avg
High
(°F)		 62.9 62.0 76.4 78.8 85.8 88.6 93.6 93.3 91.4 86.5 70.8 64.2 79.5
Avg
Low
(°F)		 46.5 45.2 58.2 60.2 68.1 73.6 75.6 72.9 71.0 68.5 53.1 43.4 61.4
2003 Data Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Rain Totals (in) 2.09 4.08 2.04 1.46 0.06 3.62 5.36 4.47 6.79 4.99 7.81 2.99 45.76
Mean Temp (°F) 50.1 53.8 61.4 70.5 80.7 82.7 83.3 84.7 77.7 71.7 65.0 53.8 69.6
Avg High (°F) 59.2 61.6 71.0 79.5 90.2 92.1 91.4 93.8 86.3 82.1 75.1 65.3 79.0
Avg Low (°F) 40.9 46.0 51.8 61.5 71.3 73.3 75.3 75.6 69.0 61.3 54.8 42.3 60.3
2002 Data Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Rain Totals (in) 1.24 0.88 2.36 3.79 1.78 4.54 7.10 5.47 8.02 14.65 4.20 5.65 59.68
Mean Temp (°F) 54.5 50.7 61.3 73.5 77.0 81.6 84.5 83.9 79.7 71.5 58.8 54.5 69.3
Avg High (°F) 66.0 63.0 71.8 81.8 85.4 90.1 93.1 92.7 88.1 78.3 68.6 63.9 78.6
Avg Low (°F) 43.1 38.4 50.7 65.2 68.6 73.2 75.8 75.0 71.2 64.8 48.8 45.2 60.0
2001 Data Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Rain Totals (in) 4.25 0.82 7.97 2.00 3.53 19.21 2.05 4.83 8.82 8.95 2.58 6.17 71.18
Mean Temp (°F) 49.3 59.3 56.4 71.7 75.9 80.5 83.6 83.5 77.0 67.0 63.4 56.0 68.6
Avg High (°F) 59.0 68.7 67.2 81.1 86.6 90.0 93.4 93.4 86.6 78.5 74.8 65.8 78.8
Avg Low (°F) 39.6 49.8 45.6 62.3 65.2 70.9 73.7 73.6 67.4 55.4 52.0 46.1 58.5
2000 Data Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Rain Totals (in) 1.25 2.32 1.35 5.52 12.35 3.29 0.64 2.11 4.34 3.27 8.50 2.67 47.61
Mean Temp (°F) 56.4 61.9 66.4 67.9 78.1 81.4 85.2 84.8 79.4 70.9 57.6 47.6 69.8
Avg High (°F) 67.2 73.6 77.9 79.4 87.0 90.4 97.7 97.4 92.1 80.9 67.2 57.4 80.7
Avg Low (°F) 45.6 50.1 54.8 56.3 69.2 72.3 72.7 72.2 66.6 60.9 48.0 37.7 58.9
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