Public Information Statement
Issued by NWS Las Vegas, NV

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NOUS45 KVEF 042230

230 PM PST Mon Dec 4 2017

...November Summary...

November was a warm and dry month across the entire region as a
strong persistent area of high pressure was parked off the Baja
California coast. This high kept the jet from digging far enough
south to bring storm systems into the region. Las Vegas recorded
no precipitation during the month which has only happened 10 times
since 1939. The last time Las Vegas received no precipitation in
November was 2006. During the months of October and November, Las
Vegas has not recorded any precipitation, including even a Trace.
This is the first time on record that this has occurred. Death Valley
also recorded no precipitation during the month, but this is bit more
common. However, the last time Death Valley recorded no precipitation
in November was 2006. Barstow, Needles, and Kingman only received a
Trace of rain during the month.

Temperatures were also quite mild around the region with many areas
seeing average temperatures in the top 10 for warmest Novembers. Las
Vegas recorded it`s warmest November on record with an average of 62.8
degrees which beat the previous record of 60.9 degrees set in 2007.
The average maximum temperature was 72.9 degrees which was third
warmest while the average minimum temperature was 52.6 degrees.
This also set a record for the warmest overnight lows beating the
previous record of 50.7 degrees set in 2008.

...Las Vegas...

Records date to 1937 at the official climate station.

* Temperature at McCarran International Airport.

                          Observed      Departure     Rank
Avg Temperature           62.8          +6.4         1st warmest
Avg Maximum Temperature   72.9          +6.6         3rd warmest
Avg Minimum Temperature   52.6          +6.1         1st warmest

Monthly Temperature Extremes at McCarran...

Highest Maximum Temperature....80 on the 16th, 22nd, and 23rd
Lowest Maximum Temperature.....62 on the 18th
Highest Minimum Temperature....61 on the  4th
Lowest Minimum Temperature.....41 on the 19th

Extremes elsewhere in the Las Vegas Valley during the month...

Location                  Lowest Temp/Date            Highest Temp/Date
Henderson Exec. Airport   35 on 11/19                 79 on 11/1 and 11/16
Nellis AFB                32 on 11/19                 81 on 11/22, and 11/23
North Las Vegas Airport   39 on 11/19                 80 on 11/16
NWS Office                48 on 10/15                 81 on 11/16, 11/22,
                                                            11/23, 11/24

* Precipitation at McCarran International Airport

Monthly Total...0.00   Rank..1st Driest (Tied)
Departure from Normal...-0.36 inch
Number of days with a trace or more...0
Number of days with measurable - 0.01 inch or more...0
Number of days with 0.10 inch or more...0
Number of days with 0.50 inch or more...0
Number of days with 1.00 inch or more...0
Wettest day...0.00
Number of days with a thunderstorm...0
Total Snowfall...0.0

* Wind at McCarran International Airport

Average wind speed...6.1 mph
Highest sustained wind (2 Min Avg)...Northwest at 39 mph on the 27th
Highest gust...Northwest at 52 mph on the 27th

* Pressure extremes reduced to sea level

Highest Pressure...30.37 on 11/18
Lowest Pressure....29.65 on 11/27

...Elsewhere across the Mojave Desert and Southern Great Basin...

Location               Avg. Temp        Departure          Rank
                        Nov 2017        from Normal
Barstow-Daggett          60.5             +4.8         6th warmest (tied)
Bishop                   48.3             +3.1        11th warmest
Death Valley             66.2             +3.7         5th warmest
Needles                  68.9             +6.1         2nd warmest
Mt. Charleston           45.3             +6.5         1st warmest
Kingman                  57.3             +6.3         3rd warmest

Below are some precipitation totals and departures for some stations
around the area.

Location               Monthly          Departure          Rank
                        Total          from Normal
Barstow-Daggett          T inch         -0.34 inch      11th driest  (tied)
Bishop                0.16 inch         -0.36 inch      39th driest  (tied)
Death Valley          0.00 inch         -0.18 inch       1st driest  (tied)
Needles                  T inch         -0.39 inch      31st driest  (tied)
Mt. Charleston        0.20 inch         -1.03 inch      10th driest  (tied)
Kingman                  T inch         -0.74 inch      26th driest  (tied)

Note...normals use the period 1981-2010.

Period of record for stations:
Las Vegas (1937-present)              Bishop (1943-present)
Barstow-Daggett (1943-present)        Death Valley (1911-present)
Needles (1888-present)                Desert Rock (1977-present)
Mt. Charleston (1980-present)         Kingman (1901-present)

The above information is preliminary and subject to a final review.
For official certified the Office of Noaa`s National
Centers for Environmental Information (NCEI) located in Asheville,
North Carolina.

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