May 2011 was drier than normal across most of New Mexico while near normal temperaures were the rule.
The month began warm on the 1st, but a strong cold front brought high winds early on the 2nd followed by record cold on the morning of the 3rd. Dry and warmer weather followed for the 4th into the 5th. Moisture gradually filtered into New Mexico from the 6th to 10th, but widespread wetting rain did not materialize. The best rain days were the 6th and 10th into 11th. This was followed by gradual drying on the 12th and 13th. The storm that brought the initial moisture to the state had moved into Mexico but returned to the southeast on the 14th. At the same time a disturbance and cold front dropped south across the state on the 15th, helping to generate some shower and thunderstorm activity. Rain amounts though were mostly light. Mostly dry and warmer than normal conditions were the rule from the 16th through 18th. Cooler temperatures and a few showers and storms imapacted mainly northern New Mexico on the 19th and 20th before another warmup and mostly dry weather on the 21st and 22nd. The first reasonably widespread severe weather event of the year struck the eastern plains on the 24th and 25th. A short wave trough on the 29th sent isolated showers and storms to the northwest and far southeast on the 28th and 29th. Dry weather ended the month on the 30th and 31st.