Weather Summary for January 2008

Brigham Young University, Department of Physics and Astronomy

Eyring Science Center, Provo, Utah

Mean Values
ValueMonthly MeanMonthly AverageAverage MinimumAverage Maximum
Temperature 28.5 F ( -1.93 C) 26.9 F ( -2.83 C) 18.9 F ( -7.28 C) 38.2 F ( 3.42 C)
Humidity 63.2% 66.9% 39.3% 87.2%
Dew Point 16.3 F ( -8.70 C) 16.5 F ( -8.59 C) 9.5 F (-12.52 C) 23.2 F ( -4.89 C)
Pressure 29.95 in. Hg (101.4 kPa) 29.97 in. Hg (101.5 kPa) 29.77 in. Hg (100.8 kPa) 30.14 in. Hg (102.1 kPa)
Absolute Pressure 24.99 in. Hg ( 84.6 kPa) 24.98 in. Hg ( 84.6 kPa) 24.86 in. Hg ( 84.2 kPa) 25.12 in. Hg ( 85.1 kPa)
Wind Speed 1.4 mph ( 0.62 m/s) 15.1 mph ( 6.77 m/s)
Solar Irradiance 0.16 cal/min/cm2 ( 109. W/m2) 0.67 cal/min/cm2 ( 468. W/m2)
Wind Chill 26.5 F ( -3.03 C) 26.5 F ( 26.55 C) 15.4 F ( -9.20 C) 37.6 F ( 3.13 C)
Heat Index 28.5 F ( -1.93 C) 26.9 F ( 26.91 C) 18.9 F ( -7.28 C) 38.2 F ( 3.42 C)

Monthly rainfall: 1.33 in. ( 33.8 mm)
Maximum daily rainfall: 0.47 in. ( 11.9 mm) on 5
Maximum rainfall rate: 0.200 in./hour ( 5.08 mm/hour) on 5 at 11:37:23
Heating degree-days (base 65): 1130.6 (Maximum: 50.4 on 17)
Cooling degree-days (base 65): 0.0 (Maximum: 0.0 on 31)
Growing degree-days (base 40): 4.6 (Maximum: 4.6 on 4)
Growing degree-days (base 50): 0.0 (Maximum: 0.0 on 31)

Extreme Values
ValueLowestonatHighestonat
Maximum Temperature 23.3 F ( -4.85 C) 18 17:13:23 53.6 F ( 11.98 C) 4 14:47:23
Minimum Temperature 4.6 F (-15.24 C) 17 04:16:23 35.6 F ( 2.02 C) 4 08:01:23
Maximum Humidity 63.3% 3 00:32:23 98.2% 12 07:53:23
Minimum Humidity 19.9% 3 12:36:23 74.0% 13 12:46:23
Maximum Dew Point 8.4 F (-13.13 C) 1 15:55:23 33.9 F ( 1.03 C) 5 08:27:23
Minimum Dew Point -3.0 F (-19.42 C) 1 11:27:23 19.7 F ( -6.85 C) 4 00:03:23
Maximum Pressure 29.58 in. Hg (100.2 kPa) 5 15:16:23 30.82 in. Hg (104.4 kPa) 1 11:38:23
Minimum Pressure 29.20 in. Hg ( 98.9 kPa) 28 11:38:23 30.46 in. Hg (103.1 kPa) 1 23:58:23
Maximum Absolute Pressure 24.75 in. Hg ( 83.8 kPa) 6 23:17:23 25.60 in. Hg ( 86.7 kPa) 1 10:40:23
Minimum Absolute Pressure 24.46 in. Hg ( 82.8 kPa) 28 11:38:23 25.32 in. Hg ( 85.7 kPa) 1 23:54:23
Maximum Wind Speed 1.1 mph ( 0.51 m/s) at 224. deg. 23 23:49:23 41.0 mph (18.35 m/s) at 236. deg. 28 11:42:23
Maximum Solar Irradiance 0.10 cal/min/cm2 ( 73. W/m2) 18 17:13:23 1.22 cal/min/cm2 ( 854. W/m2) 31 12:47:23
Maximum Wind Chill 23.3 F ( -4.85 C) 18 17:13:23 53.5 F ( 11.97 C) 4 14:47:23
Minimum Wind Chill 2.2 F (-16.57 C) 28 14:45:23 29.8 F ( -1.23 C) 4 02:52:23
Maximum Heat Index 23.3 F ( -4.85 C) 18 17:13:23 53.6 F ( 11.98 C) 4 14:47:23
Minimum Heat Index 4.6 F (-15.24 C) 17 04:16:23 35.6 F ( 2.02 C) 4 08:01:23