Table 1: Climatic records from stations near Santiaguito Volcano, Guatemala


               Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ------ 1. Temp.-- (C) 11.5 12.5 14.3 16.4 17.0 16.4 16.2 16.9 15.9 15.2 14.2 12.2 14.6
1. Precip.(cm) 1.02 0.18 0.05 1.12 3.23 21.3 46.9 41.7 54.3 41.9 3.38 0.64 214.9
2. Temp.-- (C) 21.5 21.7 39.9 21.9 22.2 22.3 22.4 22.1 22.1 22.0 21.6 21.6 21.9
2. Precip.(cm) 3.30 4.09 9.75 20.5 53.3 70.9 59.6 63.4 84.2 64.2 25.5 9.30 468.2
3. Temp.-- (C) 24.9 26.8 26.4 25.0 25.5 25.3 25.0 25.0 24.1 24.6 25.3 24.9 25.2
3. Precip.(cm) 1.22 1.93 10.3 18.4 32.3 43.9 29.5 34.8 55.4 48.1 12.9 1.70 290.3
1. Quezaltenango. Elevation 2379.3 m. 22 year record.
2. Patzulin. Elevation 899.8 m. 27 year record.
3. Retalhuleu. Elevation 239.9 m. 9 year record.

(Wernstedt, 1961)