W50S8X26QA026_CRHP_Pad_SF1442_Atch-01_Weather_Data.pdf
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This is a meteorological data summary document from the National Oceanic & Atmospheric Administration (NOAA) providing precipitation normals for Moffett Federal Airfield, California (Station USW00023244).
The document presents a 30-year climatological summary covering the period 1991-2020, generated on August 20, 2026. It details monthly precipitation statistics including total mean precipitation (13.45 inches annually), mean number of days with precipitation at various thresholds (≥0.01, ≥0.10, ≥0.50, and ≥1.00 inches), and precipitation probability levels (0.25, 0.50, and 0.75 quantiles). Key observations include winter months (January, February, December) showing the highest precipitation, with January averaging 2.49 inches and 10.8 days of measurable precipitation, while summer months (July-September) are notably dry, with July recording essentially zero precipitation. The data indicates the location receives approximately 65.7 days annually with at least 0.01 inches of precipitation and 1.8 days with precipitation exceeding 1.00 inch. This reference data serves environmental and operational planning purposes for activities at the federal airfield located in Sunnyvale/Mountain View, California.
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U.S. Department of Commerce National Centers for Environmental Information
National Oceanic & Atmospheric Administration 151 Patton Avenue
National Environmental Satellite, Data, and Information Service Asheville, North Carolina 28801
Current Location: Elev: 39 ft. Lat: 37.4058° N Lon: 122.0481° W
Station: MOFFETT FEDERAL AIRFIELD, CA US USW00023244
Summary of Monthly Normals 1991-2020
Generated on 08/20/2026
Precipitation (in.)
Totals Mean Number of Days Precipitation Probabilities
Probability that precipitation will be equal to or less than the indicated amount
Means Daily Precipitation Monthly Precipitation
vs. Probability Levels
Month Mean >= 0.01 >= 0.10 >= 0.50 >= 1.00 0.25 0.50 0.75
01 2.49 10.8 5.0 1.5 0.4 0.92 2.25 3.77
02 2.90 11.3 6.3 1.9 0.5 1.02 2.72 4.35
03 2.04 10.2 5.6 1.0 0.1 1.00 1.65 2.82
04 0.98 5.6 3.0 0.3 0.0 0.26 0.87 1.41
05 0.43 2.5 1.0 0.2 0.0 0.02 0.25 0.62
06 0.10 1.1 0.4 0.0 0.0 0.00 0.05 0.12
07 0.00 0.1 0.0 0.0 0.0 0.00 0.00 0.00
08 0.01 0.2 0.0 0.0 0.0 0.00 0.00 0.00
09 0.07 0.8 0.2 0.0 0.0 0.00 0.01 0.06
10 0.56 4.0 1.6 0.3 0.1 0.06 0.33 0.76
11 1.36 8.6 3.3 0.6 0.2 0.50 1.20 1.99
12 2.51 10.5 5.8 1.4 0.5 1.05 1.68 4.13
Summary 13.45 65.7 32.2 7.2 1.8 4.83 11.01 20.03
Empty or blank cells indicate data is missing or insufficient occurrences to compute value
File details come from the government source that posted it. Updated .