March Weather in Las Vegas is beautiful!! Not hot yet and not too cold. The days are very nice in the Sun and not even too cold in the shade. The nights are a little brisk but refreshing. You can get away with a light Jacket at night or even just a long sleeve shirt. The Hotel rates are low in March so are flights and since the weather is perfect, why not make that reservation now?
The following information is based on the national weather service database:
You can expect these averages, however the summer of 2010 proved to be a bit hotter.
January average high is 58° F (14° C) and average low is 34° F (1° C)
February average high is 63° F (17° C)and average low is 39° F (4° C)
March average high is 69° F (21° C)and average low is 44° F (7° C)
April average high is 78° F (26° C)and average low is 51° F (11° C)
May average high is 88° F (31° C)and average low is 60° F (16° C)
June average high is 100° F (38° C)and average low is 69° F (21° C)
July average high is 106° F (41° C)and average low is 74° F (23° C)
August average high is 103° F (39° C)and average low is 74° F (23° C)
September average high is 95° F (35° C)and average low is 66° F (19° C)
October average high is 82° F (28° C)and average low is 54° F (12° C)
November average high 67° F (19° C)and average low is 43° F (6° C)
December average high is 58° F (14° C)and average low is 34° F (1° C)
There are exceptions like July 2010 set a record by averaging over 100 degrees the entire month. The 100 degree mark would already be reached shortly after 10 am and not dipping below 100 until after or near midnight. More hours were over 100 than under 100 degrees to make that record.
Example of extreme changes in average Temperatures is the Snow that came in December 2008. Not just flurries but thick heavy snow. It was a treat for Las Vegas since it is extremely rare. Most of the year you can bet on the weather being hot or mild. Remember that Hotel rates are lowest when the weather is considered extremely hot, but don't stay away just because the weather is hot, there are plenty of pools to cool off in and remember It's Dry Heat!