Dimm Seeing Statistics by Month

     Site        Paranal  
Year 2018
Units arcsecs
Percentiles 5% 10% 15% 20% 25% 50% 75% 90% 95% 97.5% 99% 99.5% mean std N
JAN 0.38 0.43 0.47 0.50 0.53 0.66 0.88 1.19 1.47 1.75 2.04 2.28 0.76 0.35 11510
FEB 0.37 0.42 0.46 0.49 0.51 0.64 0.83 1.07 1.28 1.53 1.83 2.08 0.71 0.30 10524
MAR 0.38 0.41 0.44 0.47 0.50 0.62 0.80 1.02 1.17 1.41 1.84 2.21 0.69 0.29 13485
APR 0.34 0.38 0.42 0.45 0.48 0.65 0.91 1.30 1.57 1.79 2.04 2.25 0.76 0.39 12677
MAY 0.31 0.36 0.41 0.45 0.49 0.65 0.85 1.19 1.50 1.83 2.29 2.57 0.73 0.39 13600
JUN 0.40 0.46 0.52 0.56 0.59 0.76 0.99 1.27 1.56 1.86 2.21 2.55 0.84 0.37 13556
JUL 0.42 0.47 0.51 0.55 0.58 0.75 1.06 1.42 1.75 2.07 2.38 2.60 0.87 0.43 11319
AUG 0.40 0.46 0.50 0.53 0.56 0.70 0.90 1.12 1.27 1.41 1.61 1.76 0.75 0.27 14315
SEP 0.44 0.48 0.52 0.55 0.58 0.74 0.99 1.36 1.61 1.80 2.03 2.21 0.84 0.37 13720
OCT 0.46 0.51 0.55 0.58 0.61 0.75 0.96 1.22 1.43 1.66 1.95 2.15 0.82 0.32 12417
NOV 0.38 0.44 0.47 0.51 0.53 0.66 0.83 1.06 1.26 1.48 1.71 1.81 0.72 0.28 12357
DEC 0.39 0.43 0.45 0.48 0.51 0.63 0.80 1.07 1.27 1.46 1.67 1.83 0.69 0.28 11911
Anual 0.38 0.43 0.47 0.51 0.54 0.68 0.90 1.19 1.44 1.70 2.02 2.26 0.76 0.34 151391